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Royal purple smoke tree problems12/1/2023 ![]() The shrub typically grows to be between 6 and 15 feet tall.It is a deciduous shrub that is native to southern Europe, western Asia, and northern Africa.The scientific name for royal purple smoke tree is Cotinus coggygria.The tree is often used as an ornamental plant in landscaping. It has purple-tinged leaves and branches, and produces small, purple-tinged flowers in the spring. It is a small to medium-sized tree that typically grows to 15-25 feet tall with a dense, round crown. ![]() That is, placing thin clear plastic over your garden bed, securing it with heavy bricks, and allowing the sun to bake the soil over the summer, making it uninhabitable (this can only be done in a garden without existing plants, prior to planting).Royal purple smoke tree is a species of smoke tree that is native to southwestern United States and northwestern Mexico. One way to prevent future Verticillium Wilt is by solarizing your garden. Always dispose of diseased plants, rather than adding them to compost where the pathogen can continue to survive and possibly infect future plants. If your plant becomes infected and dies, avoid planting another plant that is susceptible in its spot. The Verticillium dahliae fungus lives in the soil, sometimes for a decade, until the right conditions cause it to spread. Instead, touch the soil and determine that it is dry beneath the surface before watering. ![]() When you see a plant wilting, don’t always assume it needs more water. Always plant Smoke Trees in well-draining soil and allow the soil to dry out a bit before watering deeply. Photo courtesy of Nicholas Brazee, The University of Massachusetts Amherst Preventing Verticillium Wilt on Smoke Treesįor soil-borne fungi like Verticillium dahliae, prevention is key. The life of an infected plant can be extended with proper care and watering, but it may ultimately succumb to the disease. Even if a potted plant infected with Verticillium dahliae is replanted in fresh soil, the fungus will still live in the plant, making further infection inevitable. This is especially true if the plant is sizable and planted in the ground. Unfortunately, once a plant’s roots have been damaged to the point where leaves and branches are wilting, there isn’t much that can be done. Treating Verticillium Wilt on Smoke Trees If one section of your Smoke Tree wilts suddenly, it may have Verticillium Wilt. This is due to the inability of the damaged roots to transport water and nutrients, causing the rest of the plant to become dehydrated. While the fungus attacks the roots, the infection becomes apparent when other parts of the plant start to wilt, even when the soil is damp. Verticillium Wilt is caused by a soil-borne fungus ( Verticillium dahliae) that most often affects plants whose roots become damaged, typically from overwatering and poor drainage. Giving a plant the best growing conditions possible and keeping them healthy will allow them to naturally fight off most diseases. These types of infections can be avoided if your Smoke Tree is planted in well-draining soil from the start. The only major diseases that can afflict Smoke Trees are fungal diseases, like Verticillium Wilt. While many ornamental trees and shrubs can be susceptible to diseases, Smoke Trees are considered disease resistant.
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