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Dusty miller
Jacobaea maritima subsp. maritima
Dusty miller (Jacobaea maritima subsp. maritima) is an evergreen perennial plant native to the Mediterranean region. Another common name for dusty miller is silver ragwort. Dusty miller is widely used in ornamental horticulture because of its pleasing silvery look and texture.
Hardiness Zones
6 to 9
Care Guide for Dusty miller
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Watering Care
Be very careful when watering Dusty miller since it is a dry weather specialist that can be damaged by damp soil and humidity. In hot and dry weather the plant should be watered deeply when the soil becomes dry and then left until the soil dries again before rewatering.
Fertilizing Care
Dusty miller doesn't have a great need for nutrients, and over-fertilization will make it grow too tall and weak. The best approach to feeding the plant is to apply an all-purpose slow-release granular fertilizer at the start of the growing season in spring. Apply according to the product's instructions and water well. Mulching the soil also helps to feed and protect the plant.
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Dusty miller
Water
Every week
Hardiness Zones
6 to 9
Planting Time
Spring
Questions About Dusty miller
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Watering 
Pruning 
Sunlight 
Temperature 
Fertilizing What is the best way to water my Dusty miller?
When watering the Dusty miller, you should aim to use filtered water that is at room temperature. Filtered water is better for this plant, as tap water can contain particles that are harmful to its health. The reason that the water should be at room temperature or slightly warmer is that the Dusty miller comes from a warm environment, and cold water can be somewhat of a shock to its system. Also, you should avoid overhead watering for this plant, as it can cause foliage complications. Instead, simply apply your filtered room temperature water to the soil until the soil is entirely soaked. Soaking the soil can be very beneficial for this plant as it moistens the roots and helps them continue to spread through the soil and collect the nutrients they need.
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What should I do if I water my Dusty miller too much or too little?
Both overwatering and underwatering will be detrimental to the health of your Dusty miller, but overwatering is a far more common issue. When this species receives too much water, its stems and leaves may begin to wilt and turn from green to yellow. Overwatering over a prolonged period may also lead to diseases such as root rot, mold, and mildew, all of which can kill your plant. Underwatering is far less common for the Dusty miller, as this plant has decent drought tolerance. However, underwatering remains a possibility, and when it occurs, you can expect to find that the leaves of your Dusty miller have become brittle and brown. It is crucial that you notice the signs of overwatering as soon as possible when caring for your Dusty miller. Some of the diseases that arise from overwatering, such as root rot, may not be correctable if you wait too long. If you see early signs of overwatering, you should reduce your watering schedule immediately. You may also want to assess the quality of soil in which your Dusty miller grows. If you find that the soil drains very poorly, you should replace it immediately with a loose, well-draining potting mix. On the other hand, if you find signs that your Dusty miller is receiving too little water, all you need to do is water more regularly until those signs have subsided.
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How often should I water my Dusty miller?
If your plant is in a pot. The most precise way to decide whether your Dusty miller needs water is to plunge your finger into the soil. If you notice that the first two to three inches of soil have become dry, it is time to add some water. If you grow your Dusty miller outdoors in the ground, you can use a similar method to test the soil. Again, when you find that the first few inches of soil have dried out, it is time to add water. During the spring and early fall, this method will often lead you to water this plant about once every week. When extremely hot weather arrives, you may need to increase your watering frequency to about twice or more per week. With that said, mature, well-established the Dusty miller can show an admirable ability to withstand drought.
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How much water does my Dusty miller need?
When it comes time to water your Dusty miller, you should not be shy about how much water you give. With the first two to three inches of soil dry, this plant will appreciate a long and thorough watering. Supply enough water to soak the soil entirely. The amount of water you add should be enough to cause excess water to flow through the drainage holes at the bottom of your pot. If you don’t see excess water draining from the pot, you have likely underwatered your plant. But do not let the water accumulate inside the soil, which will be very dangerous to the plant as well. Alternatively, a lack of water draining through the pot could indicate poorly draining soils, which is detrimental to the health of this plant and should be avoided. If the plant is outside, 1 inch of rain per week will be sufficient.
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How should I water my Dusty miller at different growth stages?
The water needs of the Dusty miller can change depending on growth stages as well. For example, when your Dusty miller is in the first few years of its life, or if you have just transplanted it to a new growing location, you will need to give more water than usual. During both of those stages, your Dusty miller will put a lot of energy towards sprouting new roots that will then support future growth. For those roots to perform their best, they need a bit more moisture than they would at a more mature phase. After a few seasons, your Dusty miller will need much less water. Another growth stage in which this plant may need more water is during the bloom period. Flower development can make use of a significant amount of moisture, which is why you might need to give your Dusty miller more water at this time.
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How should I water my Dusty miller through the seasons?
The Dusty miller will have its highest water needs during the hottest months of the year. During the height of summer, you may need to give this plant water more than once per week, depending on how fast the soil dries out. The opposite is true during the winter. In winter, your plant will enter a dormant phase, in which it will need far less water than usual. In fact, you may not need to water this plant at all during the winter months. However, if you do water during winter, you should not do so more than about once per month. Watering too much at this time will make it more likely that your Dusty miller will contract a disease.
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What's the difference between watering my Dusty miller indoors and outdoors?
It is most common to grow the Dusty miller indoors for any gardener that does not live in temperate and tropical regions. Those gardeners should consider the fact that soil in a container can dry out a bit faster than ground soil. Also, the presence of drying elements such as air conditioning units can cause your Dusty miller to need water on a more frequent basis as well. if you planted it outside. When that is the case, it’s likely you won’t need to water your Dusty miller very much at all. If you receive rainfall on a regular basis, that may be enough to keep your plant alive. Alternatively, those who grow this plant inside will need to water it more often, as allowing rainwater to soak the soil will not be an option.
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Key Facts About Dusty miller
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Attributes of Dusty miller
Lifespan
Perennial
Plant Type
Herb
Planting Time
Spring
Bloom Time
Summer, Fall
Harvest Time
Summer
Plant Height
15 cm to 45 cm
Spread
15 cm to 45 cm
Leaf Color
Green
Silver
Flower Size
2.5 cm to 8 cm
Flower Color
Yellow
Gold
Dormancy
Winter dormancy
Leaf type
Evergreen
Ideal Temperature
10 - 35 ℃
Pollinators
Bees
Name story
Dusty miller
The plant is widely cultivated as an ornamental plant for its white appearance and a similar texture to tomentose leaves. In horticulture, it is sometimes called dusty miller, a name that is shared with other plants with the same silvery tomentose leaves. 
Symbolism
Harvest
Usages
Garden Use
Although it produces clusters of yellow flowers, dusty miller is primarily grown for its decorative silver foliage. Thus, it makes a great accent or backdrop plant in beds and borders, usually in mid-positions, adding a rare cooler tone among more colorful planting companions. It fits well within cottage, Mediterranean, and xeric gardens. It can also add an exciting twist to a cutting garden, and does well in containers.
Trivia and Interesting Facts
Dusty miller leaves are feathery. With the shape of the leaves and its snow-white plush, the leaves resemble snowflakes. Every dusty miller leaf is a graceful gray-blue. When in bunches, they are a shiny silver and very beautiful.
Scientific Classification of Dusty miller
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Common Pests & Diseases About Dusty miller
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Common issues for Dusty miller based on 10 million real cases
Brown blotch
Brown spot is a fungal disease affecting the leaves of Dusty miller, causing unsightly brown spots which may eventually lead to leaf loss. It is primarily caused by environmental factors promoting fungal growth and it's imperative to manage to maintain plant health.
Wilting after blooming
Flowers may wither for a variety of reasons.
Solutions: Check the soil or potting medium. Coarse textures can allow water to drain too rapidly, preventing the plant from taking up enough. If the soil and roots seem very dry, add sphagnum moss or other mediums that hold water. Water according to recommendations for each plant's species. Low humidity can be corrected by misting the plant regularly or placing it near a humidifier. Keeping it near other plants helps, too. Keep the environment consistent in terms of temperature, humidity, and lighting. Keep it away from vents, heaters, and air conditioners, and avoid moving it to locations where it will experience a temperature shock. Hot, dry heat, and cold drafts are problematic for many plants. Especially if the plant is outside, it could be experiencing heat or light stress. Try moving it to a shadier location.
Underwatering
Leaves may wilt for a variety of reasons.
Solutions: The easiest (and most obvious) way to address underwatering is to fully hydrate the plant. However, this must be done carefully. A common mistake that many gardeners make is to douse their underwatered plants with water. This can overwhelm the roots of the plant and shock its system, something that can be even more damaging than the lack of water to begin with. Instead, water thoroughly and slowly, taking breaks to let the water slowly saturate through the soil to get to the roots. Use room temperature water, as cold water might be too much of a shock. In the future, shorten the time between waterings. A good rule of thumb is to check the soil around each plant daily. If it’s dry to at least two inches down, it’s time to water. If a container plant is repeatedly drying out very quickly, repotting into a slower-draining container might be a good idea, too.
Powdery Mildew
Powdery mildew is a white mold that appears on leaves. It can be wiped away.
Solutions: As powdery Mildew spores are transported by the wind, it can be tricky to put a complete stop to the spread of the fungus. Luckily, there are several easy treatments for plants that are exhibiting symptoms: If powdery Mildew seems to be impacting isolated leaves or stems, they can simply be trimmed away and disposed of. Disinfect pruning tools after doing this. Remove any plant debris from the ground around the infected plants and dispose of it in the garbage. Then, cover the soil with a thick layer of mulch to limit reinfection. Milk sprays have been found to be useful in controlling powdery Mildew. Make up a spray consisting of 60% water and 40% milk and spray on the affected plants. This can also be used as a preventative measure. In cases where powdery Mildew is more widespread, plants can be sprayed with a mild sulfur- or copper-based fungicide or a non-toxic solution made from baking soda and soap. Sprays can help areas that have been recently infected, though they are less effective against well-established infections. If possible, try transplanting the plants to a sunnier location. Though powdery Mildew does fine in hot, dry conditions, it is unable to reproduce without some humidity. Putting plants in more direct sunlight can help stop the spread of the fungus. Trimming around closely-packed plants can help improve airflow, which also prevents the reproduction of the fungus.
Brown blotch
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Brown blotch Disease on Dusty miller?
Brown spot is a fungal disease affecting the leaves of Dusty miller, causing unsightly brown spots which may eventually lead to leaf loss. It is primarily caused by environmental factors promoting fungal growth and it's imperative to manage to maintain plant health.
Symptom Analysis
Initial symptoms appear as small, water-soaked spots on the leaves of Dusty miller. These gradually grow into larger brown or dark-colored spots with a tan or gray center. Severely infected leaves may yellow and drop off.
What Causes Brown blotch Disease on Dusty miller?
Fungus
The disease is primarily caused by a variety of fungi, most commonly Cochliobolus miyabeanus, thriving in warm, wet weather.
Environmental conditions
High humidity, excessive watering, and poor air circulation foster optimal conditions for fungus development and disease spread.
How to Treat Brown blotch Disease on Dusty miller?
Non pesticide
Remove infected leaves: Trimming and discarding infected leaves prevent the spread of spores to healthy parts of Dusty miller.
Improve ventilation: Ensure adequate plant spacing and prune when necessary to improve air circulation and reduce humidity.
Pesticide
Fungicide spray: Applying a suitable fungicide, following label instructions, can control the spread of the disease.
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Wilting after blooming
Flowers may wither for a variety of reasons.
Overview
Wilting after blooming is sometimes a natural aging process of the flower, while other times it may indicate a problem. Orchids, for example, can bloom for anywhere from two weeks to three months, so wilting after a few days signals a problem for most varieties. This can happen to virtually any ornamental flowering plant, but those with shallow roots and limited tolerance for drought, full sun, and low humidity are more susceptible.
This is a common problem, and often has an easy fix. Sometimes, however, it is the result of more serious causes such as pests or disease of the root system.
Symptom Analysis
- At first, flowers may look a little limp.
- Petals may start to appear dried out and turn brown.
- Eventually they may drop off the plant all together.
Disease Cause
Wilting blooms can be a sign of an unhealthy root system. Any condition that prevents the plant from absorbing enough water and nutrition can result in wilting blooms and sometimes other symptoms. If the plant doesn’t have enough water, it cannot maintain appropriate pressure within stems, leaves, and blooms, causing them to wilt.
This can result from physical damage – for example from root breakage during re-potting or attack by insects like cutworms. If you recently re-potted your plant, physical damage to the roots is a likely cause. If you see insects, they may be eating leaves, roots, or flowers. Fungal infections can also cause root rot and damage, preventing water and nutrient uptake.
Finally, wilting blooms can result simply from age. If no other symptoms are visible, it may simply signal the natural end of the flower’s lifespan. If it seems premature, this may be caused by environmental factors: water, humidity, light, or stress. Under-watering is a common cause. Similarly, plants adapted to high humidity dry out easily when humidity is low, like during winter or in dry climates. Too much light can also stress plants that need shade, causing blooms to wilt.
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Underwatering
Leaves may wilt for a variety of reasons.
Overview
Underwatering plants is one of the quickest ways to kill them. This is something that most gardeners are well aware of. Unfortunately, knowing exactly how much water a plant needs can be tricky, especially considering that underwatering and overwatering present similar symptoms in plants.
Therefore, it’s important to be vigilant and attentive to each plants’ individual needs.
Symptom Analysis
As mentioned earlier, overwatering and underwatering present similar symptoms in plants. These symptoms include poor growth, wilted leaves, defoliation, and brown leaf tips or margins. Ultimately, both underwatering and overwatering can lead to the death of a plant.
The easiest way to determine whether a plant has too much water or too little is to look at the leaves. If underwatering is the culprit, the leaves will look brown and crunchy, while if it’s overwatering, they will appear yellow or a pale green in color.
When this issue first begins, there may be no noticeable symptoms at all, particularly in hardy or drought-tolerant plants. However, they will begin to wilt once they start suffering from a lack of water. The edges of the plant’s leaves will become brown or curled. Soil pulling away from the edges of the planter is a telltale sign, or a crispy, brittle stem.
Prolonged underwatering can cause a plant’s growth to become stunted. The leaves might drop and the plant can be more susceptible to pest infestations, too.
Disease Cause
Underwatering is caused by, quite simply, not watering plants often or deeply enough. There is a heightened risk of underwatering if any of these situations apply:
- Extreme heat and dry weather (when growing outdoors)
- Grow lights or indoor lighting that is too bright or intense for the type of plant
- Using fast-draining growing media such as sand
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Powdery Mildew
Powdery mildew is a white mold that appears on leaves. It can be wiped away.
Overview
Powdery Mildew is a common disease and the scourge of many home gardeners. It affects a large variety of plants including many varieties of vegetables. The disease is easy to identify but not always easy to get rid of once it has started to infect plants.
Powdery Mildew thrives in warm, humid conditions and can quickly spread from plant to plant. Although this disease will not kill the plants, a severe infestation will inhibit plant growth and fruit production.
Symptom Analysis
Powdery Mildew appears as pale yellow spots on leaves. These spots then become white and look powdery. The fungus spreads quickly both on the top and underside of the leaves and on the plant stems.
These white, powdery spots will join up and soon, almost the entire surface of the leaf appears white. Eventually, the edges of the leaf will turn brown and dry and start to die.
In severe infections, even the flower buds will turn white and become disfigured. Fruit will ripen prematurely and be inedible.
Disease Cause
Powdery Mildew is caused by a fungus. There are many different genera of fungus diseases that cause powdery Mildew. The fungal spores overwinter inside leaf buds and on plant material that has dropped to the soil below. As the weather warms up, these spores are then carried onto the plant by water, wind, and insects. Powdery Mildew can also be more severe in areas that experience warm, dry climates, even though the spores require some humidity to germinate.
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Distribution of Dusty miller
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Habitat of Dusty miller
Terrestrial
Northern Hemisphere
South Hemisphere
Distribution Map of Dusty miller
Dusty miller is native to the western Mediterranean region, where it can be found growing in rocky and sandy areas. It has been introduced to a random smattering of countries on four continents, and it has been listed as invasive in over a dozen countries throughout Europe and the Americas, including the United States.
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
More Info on Dusty Miller Growth and Care
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Basic Care Guide
Common Pests & Diseases
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Lighting
Full sun
Dusty miller thrives when exposed to copious amounts of daylight, yet lesser light won't necessarily stunt its growth. Originating from environments recognized for abundant sun exposure, insufficient light can lead to poor growth and pale foliage. An excess, however, may result in leaf scorch.
Best Sunlight Practices 
Transplant
18-24 inches
The best time to transplant dusty miller is from early spring until early summer, as it allows ample time for root establishment. Choose a location with well-draining soil and full sun exposure. If needed, provide support during transplantation to ensure healthy growth.
Transplant Techniques 
Temperature
-15 - 38 ℃
The native growth environment of dusty miller is generally in regions that experience temperatures ranging from 50 to 95 ℉ (10 to 35 ℃). Its temperature preferences are within this range as well, with a preferred temperature range of 50 to 80 ℉ (10 to 27 ℃). During colder seasons, planting in a sheltered area may help adjust to temperature changes and protect against frost damage. In warmer seasons, providing light shade during the hottest parts of the day can also help prevent heat stress.
Temp for Healthy Growth 
Pruning
Spring, Summer, Autumn
A striking silver-foliaged perennial, dusty miller thrives with periodic cuts. Prune for shape in early spring and trim lightly throughout early spring to late fall to promote bushy growth and remove dead foliage. Avoid heavy pruning late season to prevent winter damage. Regular clipping benefits dusty miller's compact form and vigorous foliage, enhancing its ornamental appeal and preventing legginess.
Pruning techniques 
Propagation
Spring, Summer
Dusty miller can be efficiently propagated through cuttings primarily in spring and summer. This process is moderately easy, with successful signs including new growth and root development. Ensure a well-draining soil mix for optimal results.
Propagation Techniques 
Pollination
Easy
Bustling bees serve as the primary pollinators for dusty miller, savoring its nectar and pollen. Full of vigor during the day, this plant's charming fragrance and vivid blooms beckon these bees. The bees carry loaded pollen baskets from stamen to pistil, enabling the reproductive dance of dusty miller. The synchronized, daytime pollination cycle makes this nature's spectacle extraordinarily effective.
Pollination Techniques Brown blotch
Brown spot is a fungal disease affecting the leaves of Dusty miller, causing unsightly brown spots which may eventually lead to leaf loss. It is primarily caused by environmental factors promoting fungal growth and it's imperative to manage to maintain plant health.
Read More
Underwatering dry
Underwatering is a significant concern for Dusty miller, causing the usually vibrant plant to display drought-induced signs. Prolonged underwatering threatens plant health, results in growth issues, and can lead to death if not remedied in time.
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Powdery mildew
Powdery mildew is a fungal disease that affects the growth and coloration of Dusty miller. The afflicted plant develops a coat of white, powdery residue, disrupting photosynthesis. Prolonged infection can lead to plant death.
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Flower withering
Flower withering disease primarily affects Dusty miller's bloom phase, causing sustained wilt and eventual death. Traced to fungal pathogens and environmental stressors, its high infectiousness calls for immediate treatment and preventive practices.
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Dark spots
Dark spots is a fungal disease affecting Dusty miller, which results in black or dark-brown spots on the plant's leaves. The disease significantly inhibits growth and can lead to plant death if left untreated.
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Leaf rot
Leaf rot is a widespread disease that affects the overall vitality of Dusty miller. The disease causes the foliage of Dusty miller to decay, disrupting their photosynthesis process, and if untreated, may lead to the plant's death.
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Flower wilting
Flower wilting is a plant disease that severely affects the growth and aesthetics of Dusty miller. It's caused by various factors, including pests, environmental conditions, and certain pathogens, leading to the wilting and discoloration of flowers.
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Feng shui direction
Northwest
The dusty miller showcases harmonious compatibility when placed in a Northwest direction. This direction is ruled by the earth element in Feng Shui and silver-grey color of dusty miller's leaves subtly complements this element. However, as Feng Shui interpretations may vary, it's recommended to consult individual feelings and ambiance.
Fengshui Details Plants Related to Dusty miller
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Snowrose
The Serissa japonica, or tree of a thousand stars, is an evergreen flowering shrub native to the tropical woodlands of Southeast Asia. Snowrose grows in China, India, and Japan. It is often cultivated in the art of bonsai.
Goldfish plant
Goldfish plant (Nematanthus gregarius) is also known as the Goldfish plant, due to the shape and color of its flower that resembles goldfish. Beware of its charm, as handling the plant may cause skin irritation or an allergic reaction. Due to its trailing nature, it can often be found taking form as a hanging houseplant on porches and patios.
Japanese chestnut
Japanese chestnut is a medium-sized chestnut tree that has been used in plant-disease resistance research due to its resistance to chestnut blight and ink disease. An important nut crop, the plant grows in the foothills of Japan and Korea, where the nuts are enjoyed as a sweet snack.
Indian poke
Indian poke (Phytolacca acinosa) is a perennial shrub with deep red or purple berries. The genus name for this species comes from a Greek word for “plant” and a Latin word that means “dye,” and a look at the berries makes the reason obvious. Its mature leaves and stalks are poisonous.
Cambodian dragon tree
The famous traditional medicine known as dragon's blood comes from the cambodian dragon tree. This plant is now classified as an endangered species due to its extremely limited distribution and overexploitation. This easy-to-care-for plant is native to Cambodia and is well-known for its medicinal and ornamental properties.
Japanese pepper
An evergreen and vine tree. There is a fragrance throughout. The branches are green and there are nodes from which the roots descend. Climbs up to trees and rocks and branches often hang off the base. The leaves are mutual. There is a clear petiole (1 to 4 cm in length) and the leaf blades are oval or slightly narrow and 5 to 8 cm in length. The edges are all edges (no sawtooth) the tip is sharp and it protrudes elongated. However younger leaves spring have rounder leaves. The leaf blades are dark green thick and not glossy. There are fine hairs on the back but they are not old leaves. The flowers bloom in spring. Hermaphrodite. The spikes come out to face the leaves have a handle and hang down. The inflorescence length is 3 to 8 cm. Both males and females are in close contact with flowers and turn yellow when blooming. The hull is shield-like and the flower is shaped like a thick flower shaft. The fruits are berries round and 3 to 4 mm in diameter. Ripens red over the winter. The seeds are spherical and have a diameter of 2.5 mm.
Cape jasmine
Gardenia jasminoides is an evergreen shrub with unique, glossy evergreen leaves and stunning flowers. The sophisticated, matte white flowers are often used in bouquets. The exceptional beauty of this ornamental plant has made it a popular and highly appreciated plant amongst gardeners and horticulturalists.
Golden pothos
The golden pothos (Epipremnum aureum) is a popular houseplant that is commonly seen in Australia, Asia, and the West Indies. It goes by many nicknames, including "devil's ivy", because it is so hard to kill and can even grow in low light conditions. Golden pothos has poisonous sap, so it should be kept away from pets and children.
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Related Plants
Dusty miller
Jacobaea maritima subsp. maritima
Dusty miller (Jacobaea maritima subsp. maritima) is an evergreen perennial plant native to the Mediterranean region. Another common name for dusty miller is silver ragwort. Dusty miller is widely used in ornamental horticulture because of its pleasing silvery look and texture.
Hardiness Zones
6 to 9
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Care Guide for Dusty miller
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Watering Care
Be very careful when watering Dusty miller since it is a dry weather specialist that can be damaged by damp soil and humidity. In hot and dry weather the plant should be watered deeply when the soil becomes dry and then left until the soil dries again before rewatering.
Fertilizing Care
Dusty miller doesn't have a great need for nutrients, and over-fertilization will make it grow too tall and weak. The best approach to feeding the plant is to apply an all-purpose slow-release granular fertilizer at the start of the growing season in spring. Apply according to the product's instructions and water well. Mulching the soil also helps to feed and protect the plant.
Pruning
Trim the diseased, withered leaves once a month.
Soil Care
Slightly acidic, Neutral
Ideal Lighting
Full sun, Partial sun
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Questions About Dusty miller
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Watering Pruning Sunlight Temperature Fertilizing What is the best way to water my Dusty miller?
What should I do if I water my Dusty miller too much or too little?
How often should I water my Dusty miller?
How much water does my Dusty miller need?
How should I water my Dusty miller at different growth stages?
How should I water my Dusty miller through the seasons?
What's the difference between watering my Dusty miller indoors and outdoors?
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More Questions People Also Ask
Key Facts About Dusty miller
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Attributes of Dusty miller
Lifespan
Perennial
Plant Type
Herb
Planting Time
Spring
Bloom Time
Summer, Fall
Harvest Time
Summer
Plant Height
15 cm to 45 cm
Spread
15 cm to 45 cm
Leaf Color
Green
Silver
Flower Size
2.5 cm to 8 cm
Flower Color
Yellow
Gold
Dormancy
Winter dormancy
Leaf type
Evergreen
Ideal Temperature
10 - 35 ℃
Pollinators
Bees
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Name story
Dusty miller
The plant is widely cultivated as an ornamental plant for its white appearance and a similar texture to tomentose leaves. In horticulture, it is sometimes called dusty miller, a name that is shared with other plants with the same silvery tomentose leaves.
Symbolism
Harvest
Usages
Garden Use
Although it produces clusters of yellow flowers, dusty miller is primarily grown for its decorative silver foliage. Thus, it makes a great accent or backdrop plant in beds and borders, usually in mid-positions, adding a rare cooler tone among more colorful planting companions. It fits well within cottage, Mediterranean, and xeric gardens. It can also add an exciting twist to a cutting garden, and does well in containers.
Trivia and Interesting Facts
Dusty miller leaves are feathery. With the shape of the leaves and its snow-white plush, the leaves resemble snowflakes. Every dusty miller leaf is a graceful gray-blue. When in bunches, they are a shiny silver and very beautiful.
Scientific Classification of Dusty miller
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Common Pests & Diseases About Dusty miller
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Common issues for Dusty miller based on 10 million real cases
Brown blotch
Brown spot is a fungal disease affecting the leaves of Dusty miller, causing unsightly brown spots which may eventually lead to leaf loss. It is primarily caused by environmental factors promoting fungal growth and it's imperative to manage to maintain plant health.
Learn More About the Brown blotch ![more]()
Wilting after blooming
Flowers may wither for a variety of reasons.
Solutions: Check the soil or potting medium. Coarse textures can allow water to drain too rapidly, preventing the plant from taking up enough. If the soil and roots seem very dry, add sphagnum moss or other mediums that hold water. Water according to recommendations for each plant's species. Low humidity can be corrected by misting the plant regularly or placing it near a humidifier. Keeping it near other plants helps, too. Keep the environment consistent in terms of temperature, humidity, and lighting. Keep it away from vents, heaters, and air conditioners, and avoid moving it to locations where it will experience a temperature shock. Hot, dry heat, and cold drafts are problematic for many plants. Especially if the plant is outside, it could be experiencing heat or light stress. Try moving it to a shadier location.
Learn More About the Wilting after blooming ![more]()
Underwatering
Leaves may wilt for a variety of reasons.
Solutions: The easiest (and most obvious) way to address underwatering is to fully hydrate the plant. However, this must be done carefully. A common mistake that many gardeners make is to douse their underwatered plants with water. This can overwhelm the roots of the plant and shock its system, something that can be even more damaging than the lack of water to begin with. Instead, water thoroughly and slowly, taking breaks to let the water slowly saturate through the soil to get to the roots. Use room temperature water, as cold water might be too much of a shock. In the future, shorten the time between waterings. A good rule of thumb is to check the soil around each plant daily. If it’s dry to at least two inches down, it’s time to water. If a container plant is repeatedly drying out very quickly, repotting into a slower-draining container might be a good idea, too.
Learn More About the Underwatering ![more]()
Powdery Mildew
Powdery mildew is a white mold that appears on leaves. It can be wiped away.
Solutions: As powdery Mildew spores are transported by the wind, it can be tricky to put a complete stop to the spread of the fungus. Luckily, there are several easy treatments for plants that are exhibiting symptoms: If powdery Mildew seems to be impacting isolated leaves or stems, they can simply be trimmed away and disposed of. Disinfect pruning tools after doing this. Remove any plant debris from the ground around the infected plants and dispose of it in the garbage. Then, cover the soil with a thick layer of mulch to limit reinfection. Milk sprays have been found to be useful in controlling powdery Mildew. Make up a spray consisting of 60% water and 40% milk and spray on the affected plants. This can also be used as a preventative measure. In cases where powdery Mildew is more widespread, plants can be sprayed with a mild sulfur- or copper-based fungicide or a non-toxic solution made from baking soda and soap. Sprays can help areas that have been recently infected, though they are less effective against well-established infections. If possible, try transplanting the plants to a sunnier location. Though powdery Mildew does fine in hot, dry conditions, it is unable to reproduce without some humidity. Putting plants in more direct sunlight can help stop the spread of the fungus. Trimming around closely-packed plants can help improve airflow, which also prevents the reproduction of the fungus.
Learn More About the Powdery Mildew ![more]()
Brown blotch
Overview
Symptom
Causes
Treatment
Prevention
Active Period
What is Brown blotch Disease on Dusty miller?
Brown spot is a fungal disease affecting the leaves of Dusty miller, causing unsightly brown spots which may eventually lead to leaf loss. It is primarily caused by environmental factors promoting fungal growth and it's imperative to manage to maintain plant health.
Symptom Analysis
Initial symptoms appear as small, water-soaked spots on the leaves of Dusty miller. These gradually grow into larger brown or dark-colored spots with a tan or gray center. Severely infected leaves may yellow and drop off.
What Causes Brown blotch Disease on Dusty miller?
Fungus
The disease is primarily caused by a variety of fungi, most commonly Cochliobolus miyabeanus, thriving in warm, wet weather.
Environmental conditions
High humidity, excessive watering, and poor air circulation foster optimal conditions for fungus development and disease spread.
How to Treat Brown blotch Disease on Dusty miller?
Non pesticide
Remove infected leaves: Trimming and discarding infected leaves prevent the spread of spores to healthy parts of Dusty miller.
Improve ventilation: Ensure adequate plant spacing and prune when necessary to improve air circulation and reduce humidity.
Pesticide
Fungicide spray: Applying a suitable fungicide, following label instructions, can control the spread of the disease.
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Wilting after blooming
Flowers may wither for a variety of reasons.
Overview
Wilting after blooming is sometimes a natural aging process of the flower, while other times it may indicate a problem. Orchids, for example, can bloom for anywhere from two weeks to three months, so wilting after a few days signals a problem for most varieties. This can happen to virtually any ornamental flowering plant, but those with shallow roots and limited tolerance for drought, full sun, and low humidity are more susceptible.
This is a common problem, and often has an easy fix. Sometimes, however, it is the result of more serious causes such as pests or disease of the root system.
Symptom Analysis
- At first, flowers may look a little limp.
- Petals may start to appear dried out and turn brown.
- Eventually they may drop off the plant all together.
Disease Cause
Wilting blooms can be a sign of an unhealthy root system. Any condition that prevents the plant from absorbing enough water and nutrition can result in wilting blooms and sometimes other symptoms. If the plant doesn’t have enough water, it cannot maintain appropriate pressure within stems, leaves, and blooms, causing them to wilt.
This can result from physical damage – for example from root breakage during re-potting or attack by insects like cutworms. If you recently re-potted your plant, physical damage to the roots is a likely cause. If you see insects, they may be eating leaves, roots, or flowers. Fungal infections can also cause root rot and damage, preventing water and nutrient uptake.
Finally, wilting blooms can result simply from age. If no other symptoms are visible, it may simply signal the natural end of the flower’s lifespan. If it seems premature, this may be caused by environmental factors: water, humidity, light, or stress. Under-watering is a common cause. Similarly, plants adapted to high humidity dry out easily when humidity is low, like during winter or in dry climates. Too much light can also stress plants that need shade, causing blooms to wilt.
Solutions
- Check the soil or potting medium. Coarse textures can allow water to drain too rapidly, preventing the plant from taking up enough. If the soil and roots seem very dry, add sphagnum moss or other mediums that hold water.
- Water according to recommendations for each plant's species.
- Low humidity can be corrected by misting the plant regularly or placing it near a humidifier. Keeping it near other plants helps, too.
- Keep the environment consistent in terms of temperature, humidity, and lighting. Keep it away from vents, heaters, and air conditioners, and avoid moving it to locations where it will experience a temperature shock. Hot, dry heat, and cold drafts are problematic for many plants.
- Especially if the plant is outside, it could be experiencing heat or light stress. Try moving it to a shadier location.
Prevention
- Read up on moisture, light, and soil type preferences for each plant to avoid underwatering, incorrect light levels, or other conditions that can cause wilting blooms.
- Avoid re-potting during the flowering period. This causes additional stress on the plants because they need to repair root damage and adapt to the new micro-environment, all of which can result in wilting.
- One other potential cause is ethylene gas, a plant hormone related to ripening. Some fruits and vegetables emit ethylene, especially bananas. Apples, grapes, melons, avocados, and potatoes can also give it off, so keep flowering plants away from fresh produce.
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Underwatering
Leaves may wilt for a variety of reasons.
Overview
Underwatering plants is one of the quickest ways to kill them. This is something that most gardeners are well aware of. Unfortunately, knowing exactly how much water a plant needs can be tricky, especially considering that underwatering and overwatering present similar symptoms in plants.
Therefore, it’s important to be vigilant and attentive to each plants’ individual needs.
Symptom Analysis
As mentioned earlier, overwatering and underwatering present similar symptoms in plants. These symptoms include poor growth, wilted leaves, defoliation, and brown leaf tips or margins. Ultimately, both underwatering and overwatering can lead to the death of a plant.
The easiest way to determine whether a plant has too much water or too little is to look at the leaves. If underwatering is the culprit, the leaves will look brown and crunchy, while if it’s overwatering, they will appear yellow or a pale green in color.
When this issue first begins, there may be no noticeable symptoms at all, particularly in hardy or drought-tolerant plants. However, they will begin to wilt once they start suffering from a lack of water. The edges of the plant’s leaves will become brown or curled. Soil pulling away from the edges of the planter is a telltale sign, or a crispy, brittle stem.
Prolonged underwatering can cause a plant’s growth to become stunted. The leaves might drop and the plant can be more susceptible to pest infestations, too.
Disease Cause
Underwatering is caused by, quite simply, not watering plants often or deeply enough. There is a heightened risk of underwatering if any of these situations apply:
- Extreme heat and dry weather (when growing outdoors)
- Grow lights or indoor lighting that is too bright or intense for the type of plant
- Using fast-draining growing media such as sand
Solutions
The easiest (and most obvious) way to address underwatering is to fully hydrate the plant. However, this must be done carefully. A common mistake that many gardeners make is to douse their underwatered plants with water. This can overwhelm the roots of the plant and shock its system, something that can be even more damaging than the lack of water to begin with.
Instead, water thoroughly and slowly, taking breaks to let the water slowly saturate through the soil to get to the roots. Use room temperature water, as cold water might be too much of a shock.
In the future, shorten the time between waterings. A good rule of thumb is to check the soil around each plant daily. If it’s dry to at least two inches down, it’s time to water. If a container plant is repeatedly drying out very quickly, repotting into a slower-draining container might be a good idea, too.
Prevention
Always check the soil before watering. If the top inch of soil feels moist, though not wet, the watering is perfect. If it’s dry, water it immediately. If it feels soggy, you avoid watering until it dries out a bit more.
Also, make sure the lighting is sufficient for the species. Plants grow faster and need more water when there is intense light or lots of heat. Being aware of these conditions and modifying them, if possible, is a good way to prevent underwatering. Many container plants are potted in soil mixtures mean to be well-draining. Adding materials that retain moisture, like compost or peat moss, can also prevent these symptoms.
Other tips to prevent underwatering include:
- Choose pots with adequately-sized drainage holes
- Avoid warm temperatures
- Use large pots with additional soil (these take longer to dry out)
- Avoid terracotta pots, which lose water quickly
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Powdery Mildew
Powdery mildew is a white mold that appears on leaves. It can be wiped away.
Overview
Powdery Mildew is a common disease and the scourge of many home gardeners. It affects a large variety of plants including many varieties of vegetables. The disease is easy to identify but not always easy to get rid of once it has started to infect plants.
Powdery Mildew thrives in warm, humid conditions and can quickly spread from plant to plant. Although this disease will not kill the plants, a severe infestation will inhibit plant growth and fruit production.
Symptom Analysis
Powdery Mildew appears as pale yellow spots on leaves. These spots then become white and look powdery. The fungus spreads quickly both on the top and underside of the leaves and on the plant stems.
These white, powdery spots will join up and soon, almost the entire surface of the leaf appears white. Eventually, the edges of the leaf will turn brown and dry and start to die.
In severe infections, even the flower buds will turn white and become disfigured. Fruit will ripen prematurely and be inedible.
Disease Cause
Powdery Mildew is caused by a fungus. There are many different genera of fungus diseases that cause powdery Mildew. The fungal spores overwinter inside leaf buds and on plant material that has dropped to the soil below. As the weather warms up, these spores are then carried onto the plant by water, wind, and insects. Powdery Mildew can also be more severe in areas that experience warm, dry climates, even though the spores require some humidity to germinate.
Solutions
As powdery Mildew spores are transported by the wind, it can be tricky to put a complete stop to the spread of the fungus. Luckily, there are several easy treatments for plants that are exhibiting symptoms:
- If powdery Mildew seems to be impacting isolated leaves or stems, they can simply be trimmed away and disposed of. Disinfect pruning tools after doing this.
- Remove any plant debris from the ground around the infected plants and dispose of it in the garbage. Then, cover the soil with a thick layer of mulch to limit reinfection.
- Milk sprays have been found to be useful in controlling powdery Mildew. Make up a spray consisting of 60% water and 40% milk and spray on the affected plants. This can also be used as a preventative measure.
- In cases where powdery Mildew is more widespread, plants can be sprayed with a mild sulfur- or copper-based fungicide or a non-toxic solution made from baking soda and soap. Sprays can help areas that have been recently infected, though they are less effective against well-established infections.
- If possible, try transplanting the plants to a sunnier location. Though powdery Mildew does fine in hot, dry conditions, it is unable to reproduce without some humidity. Putting plants in more direct sunlight can help stop the spread of the fungus.
- Trimming around closely-packed plants can help improve airflow, which also prevents the reproduction of the fungus.
Prevention
There are a few ways to prevent a powdery Mildew infection from occurring in the first place:
- Preemptive chemical controls, including fungicides and non-toxic solutions, can help prevent powdery Mildew from becoming established on plants.
- When placing new plants, allow enough space between each one to provide adequate air circulation.
- Water at the base of plants rather than from overhead.
- Many mildew-resistant strains of common garden plants are available. Consider these in areas that have a Mediterranean climate.
- Powdery Mildew can form tiny, round black structures, called cleistothecia, as the growing season draws to a close. These hardy, dry structures help the fungus survive winter. Raking away debris over the winter can remove stowaway cleistothecia and will help prevent plants from being reinfected.
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Distribution of Dusty miller
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Habitat of Dusty miller
Terrestrial
Northern Hemisphere
South Hemisphere
Distribution Map of Dusty miller
Dusty miller is native to the western Mediterranean region, where it can be found growing in rocky and sandy areas. It has been introduced to a random smattering of countries on four continents, and it has been listed as invasive in over a dozen countries throughout Europe and the Americas, including the United States.
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
More Info on Dusty Miller Growth and Care
Basic Care Guide
Common Pests & Diseases
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Lighting ![Lighting detail]()
Full sun
Transplant ![Transplant detail]()
18-24 inches
Temperature ![Temperature detail]()
-15 - 38 ℃
Pruning ![Pruning detail]()
Spring, Summer, Autumn
Propagation ![Propagation detail]()
Spring, Summer
Pollination ![Pollination detail]()
Easy
Brown blotch
Brown spot is a fungal disease affecting the leaves of Dusty miller, causing unsightly brown spots which may eventually lead to leaf loss. It is primarily caused by environmental factors promoting fungal growth and it's imperative to manage to maintain plant health.
Underwatering dry
Underwatering is a significant concern for Dusty miller, causing the usually vibrant plant to display drought-induced signs. Prolonged underwatering threatens plant health, results in growth issues, and can lead to death if not remedied in time.
Powdery mildew
Powdery mildew is a fungal disease that affects the growth and coloration of Dusty miller. The afflicted plant develops a coat of white, powdery residue, disrupting photosynthesis. Prolonged infection can lead to plant death.
Flower withering
Flower withering disease primarily affects Dusty miller's bloom phase, causing sustained wilt and eventual death. Traced to fungal pathogens and environmental stressors, its high infectiousness calls for immediate treatment and preventive practices.
Dark spots
Dark spots is a fungal disease affecting Dusty miller, which results in black or dark-brown spots on the plant's leaves. The disease significantly inhibits growth and can lead to plant death if left untreated.
Leaf rot
Leaf rot is a widespread disease that affects the overall vitality of Dusty miller. The disease causes the foliage of Dusty miller to decay, disrupting their photosynthesis process, and if untreated, may lead to the plant's death.
Flower wilting
Flower wilting is a plant disease that severely affects the growth and aesthetics of Dusty miller. It's caused by various factors, including pests, environmental conditions, and certain pathogens, leading to the wilting and discoloration of flowers.
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Lighting
Indoor
Indoor
Outdoor
Choose a site here for personalized care tips. Requirements
Full sun
Ideal
Above 6 hours sunlight
Partial sun
Tolerance
About 3-6 hours sunlight
Watch how sunlight gracefully moves through your garden, and choose spots that provide the perfect balance of light and shade for your plants, ensuring their happiness. Essentials
Dusty miller thrives when exposed to copious amounts of daylight, yet lesser light won't necessarily stunt its growth. Originating from environments recognized for abundant sun exposure, insufficient light can lead to poor growth and pale foliage. An excess, however, may result in leaf scorch.
Preferred
Tolerable
Unsuitable
Artificial lighting
Indoor plants require adequate lighting for optimal growth. When natural sunlight is insufficient, particularly in winter or in less sunny spaces, artificial lights offer a vital solution, promoting faster, healthier growth.
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Indoor plants require adequate lighting for optimal growth. When natural sunlight is insufficient, particularly in winter or in less sunny spaces, artificial lights offer a vital solution, promoting faster, healthier growth.
1. Choose the right type of artificial light: LED lights are a popular choice for indoor plant lighting because they can be customized to provide the specific wavelengths of light that your plants need.
Full sun plants need 30-50W/sq ft of artificial light, partial sun plants need 20-30W/sq ft, and full shade plants need 10-20W/sq ft.
2. Determine the appropriate distance: Place the light source 12-36 inches above the plant to mimic natural sunlight.
3. Determine the duration: Mimic the length of natural daylight hours for your plant species. most plants need 8-12 hours of light per day.
1. Choose the right type of artificial light: LED lights are a popular choice for indoor plant lighting because they can be customized to provide the specific wavelengths of light that your plants need.
Full sun plants need 30-50W/sq ft of artificial light, partial sun plants need 20-30W/sq ft, and full shade plants need 10-20W/sq ft.
2. Determine the appropriate distance: Place the light source 12-36 inches above the plant to mimic natural sunlight.
3. Determine the duration: Mimic the length of natural daylight hours for your plant species. most plants need 8-12 hours of light per day.
Important Symptoms
Symptoms of Insufficient Light in %s
Dusty miller thrives in full sunlight and is commonly grown outdoors where it receives ample sunlight. When placed in rooms with inadequate lighting, symptoms of light deficiency may not be readily apparent.
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(Symptom details and solutions)
Small leaves
New leaves may grow smaller in size compared to the previous ones once they have matured.
Leggy or sparse growth
The spaces between leaves or stems of your dusty miller may become longer, resulting in a thin and stretched-out appearance. This can make the plant look sparse and weak, and it may easily break or lean due to its own weight.
Faster leaf drop
When plants are exposed to low light conditions, they tend to shed older leaves early to conserve resources. Within a limited time, these resources can be utilized to grow new leaves until the plant's energy reserves are depleted.
Slower or no new growth
Dusty miller enters a survival mode when light conditions are poor, which leads to a halt in leaf production. As a result, the plant's growth becomes delayed or stops altogether.
Lighter-colored new leaves
Insufficient sunlight can cause leaves to develop irregular color patterns or appear pale. This indicates a lack of chlorophyll and essential nutrients.
Solutions
1. To ensure optimal growth, gradually move plants to a sunnier location each week, until they receive at least 6 hours of direct sunlight daily. Use a south-facing window and keep curtains open during the day for maximum sunlight exposure and nutrient accumulation.2. To provide additional light for your plant, consider using artificial light if it's large or not easily movable. Keep a desk or ceiling lamp on for at least 8 hours daily, or invest in professional plant grow lights for ample light.
Symptoms of Excessive light in %s
Dusty miller thrives in full sun exposure and can tolerate intense sunlight. With their remarkable resilience, symptoms of sunburn may not be easily visible, as they rarely suffer from it.
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(Symptom details and solutions)
Chlorosis
Chlorosis is a condition where the plant's leaves lose their green color and turn yellow. This is due to the breakdown of chlorophyll from excessive sunlight, which negatively affects the plant's ability to photosynthesize.
Sunscald
Sunscald occurs when the plant's leaves or stems are damaged by intense sunlight exposure. It appears as pale, bleached, or necrotic areas on the plant tissue and can reduce the plant's overall health.
Leaf Curling
Leaf curling is a symptom where leaves curl or twist under extreme sunlight conditions. This is a defense mechanism used by the plant to reduce its surface area exposed to sunlight, minimizing water loss and damage.
Wilting
Wilting occurs when a plant loses turgor pressure and its leaves and stems begin to droop. Overexposure to sunlight can cause wilting by increasing the plant's water loss through transpiration, making it difficult for the plant to maintain adequate hydration.
Leaf Scorching
Leaf scorching is a symptom characterized by the appearance of brown, dry, and crispy edges or patches on leaves due to excessive sunlight. This can lead to a reduction in photosynthetic capacity and overall plant health.
Solutions
1. Move your plant to the optimal position where it can receive abundant sunlight but also have some shade. An east-facing window is an ideal choice as the morning sunlight is gentler. This way, your plant can enjoy ample sunlight while reducing the risk of sunburn.2. It is recommended to trim off any completely dehydrated or withered parts of the plant.
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Temperature
Indoor
Indoor
Outdoor
Choose a site here for personalized care tips. Requirements
Ideal
Tolerable
Unsuitable
Just like people, each plant has its own preferences. Learn about your plants' temperature needs and create a comforting environment for them to flourish. As you care for your plants, your bond with them will deepen. Trust your intuition as you learn about their temperature needs, celebrating the journey you share. Lovingly monitor the temperature around your plants and adjust their environment as needed. A thermometer can be your ally in this heartfelt endeavor. Be patient and gentle with yourself as you explore your plants' temperature needs. Cherish your successes, learn from challenges, and nurture your garden with love, creating a haven that reflects the warmth of your care. Essentials
The native growth environment of dusty miller is generally in regions that experience temperatures ranging from 50 to 95 ℉ (10 to 35 ℃). Its temperature preferences are within this range as well, with a preferred temperature range of 50 to 80 ℉ (10 to 27 ℃). During colder seasons, planting in a sheltered area may help adjust to temperature changes and protect against frost damage. In warmer seasons, providing light shade during the hottest parts of the day can also help prevent heat stress.
Regional wintering strategies
Dusty miller has strong cold resistance, so special frost protection measures are usually not necessary during winter. However, if the winter temperatures are expected to drop below {Limit_growth_temperature}, it is still important to provide cold protection. This can be achieved by covering the plant with materials such as soil or straw. Before the first freeze in autumn, it is recommended to water the plant abundantly, ensuring the soil remains moist and enters a frozen state. This helps prevent drought and water scarcity for the plant during winter and early spring.
Important Symptoms
Symptoms of Low Temperature in Dusty miller
Dusty miller is cold-tolerant and thrives best when the temperature is above {Suitable_growth_temperature_min}. During winter, it should be kept above {Tolerable_growing_temperature_min}. When the temperature falls below {Limit_growth_temperature}, although there may not be any noticeable changes during winter, there may be a decrease in sprouting or even no sprouting during springtime.
Solutions
In spring, remove any parts that have failed to sprout.
Symptoms of High Temperature in Dusty miller
During summer, Dusty miller should be kept below {Suitable_growth_temperature_max}. When the temperature exceeds {Tolerable_growing_temperature_max}, the leaves of the plant may become lighter in color, prone to curling, susceptible to sunburn, and in severe cases, the entire plant may wilt and become dry.
Solutions
Trim away the sunburned and dried-up parts. Move the plant to a location that provides shade from the midday and afternoon sun, or use a shade cloth to create shade. Water the plant in the morning and evening to keep the soil moist.
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