Never have looked as they should.. Maybe it is a different species? If it becomes a recurring problem, dust the shrub with sulfur fungicide five or six times at seven- to 10-day intervals beginning in the spring each year to prevent the fungus. Smoke tree, botanically known as Cotinus coggygria, does require some pruning to keep it in shape and prevent it from becoming a shrub that can overtake the site where it is planted. * Size: 15 feet tall and 12 feet wide if not pruned. I believe the tree may be European smoke tree (Cotinus coggygria). J.W., Ann Arbor, Although smoke tree or smoke bush (Cotinus coggygria) requires well-drained soil and full sun, it is quite adaptable to different soil conditions. Cotinus gets its common names, smoke bush or smoke tree, from its panicles of spent flowers that appear like puffs of smoke around the plant. Scrape light infestations off with an old toothbrush. It isn’t necessary to repeat this unless the smoke bush is not thriving in later years. Growing Royal Purple Smoke Trees. Smoke bush is often used as an individual specimen … Read honest and unbiased product reviews from our users. ..I’ve got exactly the same problem. SB Cotinus coggygria Royal Purple - Smoke Bush - Plant in 3.5" Pot More buying choices £21.20 (1 used offer) Cotinus 'Grace' 15cm Pot Size It produces flowers on new stems so pruning after it begins growing in the spring will reduce blooming. Smoke Tree (Cotinus coggygria)-Verticillium Wilt Notice the vascular discoloration where the outer portions of the branch have been removed. The stunning purple foliage adds intense contrast and excitement to your landscape; A xeriscape recommended plant! When you grow a smoke tree (Cotinus coggygria) in your backyard, the leaf color is ornamental throughout the growing season.The small tree’s oval leaves are deep purple, gold or green in summer, but light up in yellows, oranges and reds in autumn. Perfect for keeping shaped as a centrepiece to any planter or even in the garden border, this tree comes with an approx 70cms clear stem, topped off with branches and foliage which will fill out year-on-year. The smoke tree belongs to the sumac family (Anacardiaceae), so it is related to the vinegar tree. Avoid fertilizing (directly or indirectly) with high nitrogen (lawn) fertilizer; nitrogen promotes stem and leaf growth at the expense of flower production. ‘Royal Purple’ is a compact, purple-leaved version of the European species. Click cover to read now! A landscape phenom! As trees go it’s very compact, usually topping out at 10 to 12 feet tall and wide. If the branches are still green/ alive, keeping it watered may save it. It grows best in USDA Hardiness Zones 4 to 9 and is highly drought-tolerant. Cotinus coggygria‘Royal Purple’ -- ‘Royal Purple’ Smoketree Page 3 Figure 3. Required fields are marked *. AKA Cotinus 'Royal Purple', Smoke Bush The branches of the tree may also be affected by the wilt, making it important to chop them off, lest they spread the disease to the entire tree. These deciduous shrubs are easy to care for and can actually be harmed when given the level of care required by many other flowering shrubs. They can help you diagnose the issue with knowledge specific to your region. For best flowering, this cultivar should not be cut back to the ground in winter, which is often done with species shrubs and other smoketree cultivars. Smoke bush is often used as a garden specimen thanks to its beautiful purple-pink smokey plumes and the purple leaves found on some cultivars. A 2- to 3-inch depth of organic mulch should be spread over the “Royal Purple” root system to help keep the soil moist, reduce weed growth and prevent mower injury to the stems. Leaf drop, the falling of leaves that appear healthy, is also common with both varieties. Fertilizer is not generally required for smoketree bushes and can actually harm them. Woody plants need watering less frequently than tender annuals, lawn, or herbaceous plants. Mulch the area (do not pile mulch up against the trunk) and water infrequently: a good soaking once per week is much better than multiple small waterings. All rights reserved. Flowers followed by ovoid fruits in late summer. Thanks for reading! The beautiful Royal Purple Smoke Bush is now available as a Patio Standard tree! This issue sponsored by: I have a purple smoke tree that is about 9 years old. OSU Extension Plant Pathology Slide Collection. Prune stems with cankers back to healthy stem tissue below the canker and remove leaves with scabs. Thanks to its filigree growth, it enjoys great popularity among hobby gardeners, especially as a solitary wood. Left to grow naturally it is a great way to fill a corner or an empty space in the garden. Specific epithet comes from the Greek word kokkugia meaning smoke tree. This tree is prone to a fungal disease known as Verticillium wilt, due to which the tree eventually dies. Smoke trees tend to have a rangy, splayed growth habit. Considered a susceptible tree, the smoke tree may die in a single season. Cotinus coggygria, syn. Ms. Raine is hoping to have her first novel published soon. Find helpful customer reviews and review ratings for Royal Purple Smoke Bush - Cotinus - Flowering Shrub - 4" Pot at Amazon.com. Your email address will not be published. During the first week, check the soil each morning before watering to determine if 2 gallons is enough. Its claim to fame is the cloud of pinkish gray “smoke” that covers the plant in the summer. I planted them as soon as I receive them in the mail. Fill these holes with 5-10-10 fertilizer. If it is dry, give the shrub 3 gallons but, if it is dripping wet, wait until the next morning to water. Shredded tree bark, wood chips and pine needles work well. It was nice to know more about smoke tree. Other Roots: surface roots are usually not a problem Winter interest: no special winter interest Outstanding tree: tree has outstanding ornamental features and could be planted more When can I expect to see some budding and life coming forth from my royal purple smoke trees? San Jose armored scales are found on the stems and leaves. Early spring is best but it can be any time. It brightens the landscape with airy clusters of purple-pink flowers in the spring and burgundy foliage that changes to brilliant red in the fall. It requires a moist, well-drained soil in full or partial sun and it won’t fail to impress. In this plant disease, the leaves curl inwards and droop or bend, not regaining their original shape. It is a deciduous, upright, loose-spreading, multi-stemmed shrub that typically matures over time to 10-15' tall. Woody plants are going to be happier if you don’t overdo it. Cotinus coggygria 'Royal Purple' will naturally grow to a shrub of around 5 x 5 meters in size over 20 years, but we have grown it as a beautiful single stem tree with a lovely rounded habit. Problems With Flowering Mock Orange (Philadelphus Lewisii), Missouri Botanical Garden: Cotinus Coggygria “Royal Purple”, Missouri Botanical Garden: Cotinus Coggygria, Clemson University Cooperative Extension: Home & Garden Information Center: Planting Shrubs Correctly, North Carolina State University: Watering Shrubs, University of Wisconsin Extension: Cooperative Extension: News Archives: Renewal Pruning Benefits Shrubs, Missouri Botanical Garden: Leaf Spot Diseases of Shade Trees and Ornamentals, Purdue University: Purdue Extension: Disease Management Strategies: Using Organic Fungicides, The University of Georgia: College of Agricultural & Environmental Sciences: Ornamentals -- Home Insect Control, Missouri Botanical Garden: Verticillium Wilt, University of Florida IFAS Extension: EDIS: Cotinus Coggygria “Royal Purple”: “Royal Purple” Smoketree. Around fifteen year old smoke, bush tree, thriving, healthy and full of flowers. The Smoke Tree (Cotinus coggygria) grows in light bushes on rocky and dry slopes. The Royal Purple Smoke tree looks great as a single specimen or as a hedge or group planting. Copyright © 1996-2021 Michigan Gardener. The large panicles of wispy purple-colored flowers produced in spring and early summer give the effect of a cloud of smoke. There are two types of Smoke trees, one is more of a shrub (European Smoketree Cotinus coggygria) and has a mature spread of 12 feet.The American Smoketree (Cotinus obovatus) is a small tree growing up to 30- 40 feet tall.Cotinus coggygria which is the species you are likely to have, has shallow fibrous roots so it's unlikely to damage the wall but it's root system will be constricted. Pruning smoke trees annually will help make the plant more compact and strengthen the limbs. University of California Agriculture & Natural Resources: UC IPM Online: San Jose Scale, Diaspidiotus Perniciosus, Black Caps (Right) and the Covering of a Mature Female with a Parasite Exit Hole (Left). -Jonathon. The Royal Purple Smoketree grows into a rounded bush upwards of 10 feet tall and at least as wide. San Jose scales and oblique-banded leaf rollers may attack “Royal Purple” smoketrees. As summer draws near, the leaves turn purple, almost black, a nice contrast to the red veins and edging of the leaf margins. After the first month, give the shrub 5 to 6 gallons of water once or twice each week. Is it dead? Rust fungus looks like powdery, orange rust on the leaves. The flame smoke tree can also contract a powdery mildew growth on its leaf tops. Emerging rich maroon-red in spring, the leaves mature to deep wine purple in summer, before turning redder in fall. The infected foliage and any debris around the base of the shrub must be removed right away. Informative article! If you see your smoke tree wilting, it may be a serious fungal disease called verticillium wilt. If your cotinus is affected, it’s hard to treat and the best approach is to remove and destroy the plant, taking care not to disturb the soil too much as this can spread the fungus. Award-winner Cotinus coggygria 'Royal Purple' (Smokebush) is a bushy large deciduous shrub noted for its attractive foliage of rounded leaves. Yes, but it did not answer the question. I am kind of glad it is because it never did what I bought it for so now I can replace it with something like a real flowering tree. For a new plant, avoid planting in waterlogged or poorly draining soil. If so, its small tree and should not be a problem that close to the house. It is easy to see why Great Plant Picks chose this shrub for their 2005 list. Leaf rollers are moth caterpillars that roll themselves up in smoketree leaves. If the leaves of the American smoke tree are fading or turning pale, the tree may be suffering from chlorosis, an iron deficiency. There are some popular cultivars with purple leaves and darker flower clusters, such as ‘Royal Purple,’ ‘Velvet Cloak,’ and ‘Nordine Red.’ While smoke bush is relatively easy to grow, it can use some help in the early stages of development. Rhus cotinus, the European smoketree, Eurasian smoketree, smoke tree, smoke bush, Venetian sumach, or dyer's sumach, is a species of flowering plant in the family Anacardiaceae, native to a large area from southern Europe, east across … The smoketree (sometimes also called smoke tree or smoke bush) is an awesome specimen tree to have in your garden or landscape. Two things come to mind. Best offers for your Garden - https://amzn.to/2InnD0w ----- Smoke Tree Problems. Full sun. Moderate grower to 15 feet tall, 10 to 12 feet wide. The infected leaves and twigs should be removed. Reannan Raine worked for 30 years in the non-profit sector in various positions. Ht.5mt.(15ft.). Verticillium wilt, a soil borne fungus may be the culprit. Appearing in late spring, large, feathery, pink flower plumes cover the plant with fluffy, hazy 'smoky' puffs throughout summer. Did it bloom in the summer? The inner wood of the larger branches may show streaking of green, gray or black. There are also natural occurrences in South Tyrol and Ticino. Another health issue that this tree is affected by is powdery mildew. Royal Purple Smoke Tree - (Cotinus coggygria 'Royal Purple') Trees Other Common Names: Skoke Tree ... Never use any information from Gardenality to diagnose or treat any medical problem. I love it, It’s hard to say. This should be a one-time application. You'll see smoke bush described in catalogs and garden references as both a shrub and a tree. Other common names smoke tree 'Royal Purple' . Annuals, tropicals and turf are heavy feeders, but over-fertilizing perennials and woody plants can force them to produce more stems and leaves than they want to, which can lead to unnecessary stress. Leaves turn scarlet in fall. One is the tree was hit by some sort of herbicide. What Does a Russian Almond Shrub Smell Like? Once established in the landscape, shrubs and trees adjust to the nutrients in the soil and often don’t want too much extra pampering. Smoke tree is an ornamental shrub to small tree that is grown for the bright purple or yellow leaves and the spring flowers that mature and “puff” out as if they were clouds of smoke. Foliage holds color all summer, turning scarlet in autumn. The effect is the result not of flowers, but of tiny pinkish hairs on the small fruits that occur in large clusters. Black or tan leaf spots are caused by fungi or bacteria. Dry Leaves On Purple Smoke Bush - The leaves on my purple smoke bush are all dry. Leaf spots, sometimes called leaf rust, can affect both varieties. Ordinarily, 2 gallons of water each morning is sufficient; however, this varies depending on how quickly the soil drains. Most established trees and shrubs can go weeks without supplemental watering except in very hot or windy weather. A large shrub or small multi-stemmed tree that can grow to 15 feet tall, it can work as a background plant for the mixed border or as a single specimen plant. Foliage of ‘Royal Purple’ Smoketree. The Purple Smoke tree is extremely drought tolerant, adaptable to any well-drained soil, and easy to grow. “Royal Purple” requires only minimal pruning in late winter or early spring just before it begins to put on new foliage. Gardenality.com was designed and developed by web development firm, Dot Designers. They are hardy in U.S. Department of Agriculture plant hardiness zones 4 to 8 where they grow to a height of 10 to 15 feet. © Copyright 2020 Hearst Communications, Inc. For a new plant, avoid planting in waterlogged or poorly draining soil. Learn how your comment data is processed. We recommend taking a sample leaf to your local garden center for them to evaluate. Why Is My Winterberry Losing Black Leaves? She recently became a licensed insurance agent but has decided to pursue a writing career instead. I have tried watering it more, I have tried watering it less. “Royal Purple” (Cotinus coggygria “Royal Purple”) is a smoketree cultivar that is drought tolerant and deer resistant. Diseases “Royal Purple” is not highly susceptible to diseases but it does occasionally develop leaf spot, rust, scab, stem canker or verticillium wilt. Tissue culture. Genus Cotinus are large deciduous shrubs or small trees with simple, obovate leaves often colouring well in autumn, and insignificant flowers borne in large, plumy panicles in summer becoming colourful in fruit I have a young purple smoke bush that I just planted late spring, the leaves are all dried and brittle, not sure it i don’t water it enough of maybe too much, they told me to keep it well watered, what can I do to save it?? Smoke Tree Lifespan - How long does a smoke tree live? Left to its natural inclinations, it will grow into a tree. Natural scale predators usually keep them under control. How Far Back Can Japanese Boxwoods Be Safely Cut Back? Prune off diseased branches and branches that are growing at odd angles or across other branches. 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Last fall I received four smoke trees tend to have a rangy, splayed growth habit or! Spring just before it begins to put on new foliage in Asia royal purple smoke tree problems high nutrients...