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. For a new plant, avoid planting in waterlogged or poorly draining soil. This should be a one-time application. Hi Kristin – If your smoke bush still has not leafed out, cut a small branch off the plant and take it to your local independent garden center nursery. This disease is a result of a fungal infection. Rust fungus looks like powdery, orange rust on the leaves. Never have looked as they should.. Maybe it is a different species? How Far Back Can Japanese Boxwoods Be Safely Cut Back? They have flat bodies with hard, black shells and are immobile. 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 Yes, but it did not answer the question. San Jose armored scales are found on the stems and leaves. Best, Jonathon, Your email address will not be published. Your email address will not be published. It requires a moist, well-drained soil in full or partial sun and it won’t fail to impress. This tree is prone to a fungal disease known as Verticillium wilt, due to which the tree eventually dies. “Royal Purple” (Cotinus coggygria “Royal Purple”) is a smoketree cultivar that is drought tolerant and deer resistant. Thanks to its filigree growth, it enjoys great popularity among hobby gardeners, especially as a solitary wood. You'll see smoke bush described in catalogs and garden references as both a shrub and a tree. It is a deciduous, upright, loose-spreading, multi-stemmed shrub that typically matures over time to 10-15' tall. All rights reserved. Woody plants are going to be happier if you don’t overdo it. 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. Leaves turn scarlet in fall. Specific epithet comes from the Greek word kokkugia meaning smoke tree. The Eurasian species, Cotinus coggygria , reaches a height of 15 feet; C. obovatus , a native of the southeast, is even taller, reaching 25 to 30 feet. During the first week, check the soil each morning before watering to determine if 2 gallons is enough. Deciduous. Full sun. 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 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. Last fall I received four smoke trees in bare root form. Smoke bush, Cotinus coggygria, is a deciduous shrub that's also commonly known as royal purple smoke bush, smokebush, smoke tree, and purple smoke tree. From the second year on, give the shrub 5 to 6 gallons of water every 10 days when it does not rain. Prune stems with cankers back to healthy stem tissue below the canker and remove leaves with scabs. © Copyright 2020 Hearst Communications, Inc. 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. 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?? Dry Leaves On Purple Smoke Bush - The leaves on my purple smoke bush are all dry. Required fields are marked *. Learn how your comment data is processed. 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. Appearing in late spring, large, feathery, pink flower plumes cover the plant with fluffy, hazy 'smoky' puffs throughout summer. “Royal Purple” is not highly susceptible to diseases but it does occasionally develop leaf spot, rust, scab, stem canker or verticillium wilt. Another health issue that this tree is affected by is powdery mildew. The inner wood of the larger branches may show streaking of green, gray or black. Once established in the landscape, shrubs and trees adjust to the nutrients in the soil and often don’t want too much extra pampering. Verticillium wilt, a soil borne fungus may be the culprit. It is widespread in the eastern Mediterranean-area, on the Balkan-peninsula and in Asia. The flame smoke tree can also contract a powdery mildew growth on its leaf tops. Moderate grower to 15 feet tall, 10 to 12 feet wide. If the leaves of the American smoke tree are fading or turning pale, the tree may be suffering from chlorosis, an iron deficiency. Best in sun Verticillium wilt is also caused by a fungus but there is no cure for it. When planted in soil that is high in nutrients, these shrubs do not live very long. I believe the tree may be European smoke tree (Cotinus coggygria). Entire branches wilt, shrub growth is stunted and the foliage turns yellow and drops prematurely. Save my name, email, and website in this browser for the next time I comment. Emerging rich maroon-red in spring, the leaves mature to deep wine purple in summer, before turning redder in fall. The beautiful Royal Purple Smoke Bush is now available as a Patio Standard tree! 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. OSU Extension Plant Pathology Slide Collection. Black or tan leaf spots are caused by fungi or bacteria. In this plant disease, the leaves curl inwards and droop or bend, not regaining their original shape. Ht.5mt.(15ft.). We recommend taking a sample leaf to your local garden center for them to evaluate. The Royal Purple Smoketree grows into a rounded bush upwards of 10 feet tall and at least as wide. If it is dry, give the shrub 3 gallons but, if it is dripping wet, wait until the next morning to water. Left to grow naturally it is a great way to fill a corner or an empty space in the garden. Leaf rollers are moth caterpillars that roll themselves up in smoketree leaves. Missouri Botanical Garden: Scale -- Outdoors, University of California Agriculture & Natural Resources: UC IPM Online: How to Manage Pests: Pests in Gardens and Landscapes: Leafrollers on Ornamental and Fruit Trees. 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. Left to its natural inclinations, it will grow into a tree. Cotinus are generally not plagued by pests and diseases – they can succumb to verticillium wilt, a fungal disease borne in the soil, which can cause dieback and affects the foliage. While smoke bush is relatively easy to grow, it can use some help in the early stages of development. Q. * Size: 15 feet tall and 12 feet wide if not pruned. The infected foliage and any debris around the base of the shrub must be removed right away. She recently became a licensed insurance agent but has decided to pursue a writing career instead. Even though “Royal Purple” is drought tolerant, it must be watered every morning for the first month after planting. AKA Cotinus 'Royal Purple', Smoke Bush It is a large, healthy tree, but it has never “smoked.” Every spring it is full of blossoms, then when other smoke trees are beginning to smoke, the blossoms on this tree shrivel and die. 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. Did it bloom in the summer? If so, its small tree and should not be a problem that close to the house. As summer draws near, the leaves turn purple, almost black, a nice contrast to the red veins and edging of the leaf margins. Other common names smoke tree 'Royal Purple' . If your tree is planted in the lawn, remove the grass in at least a 6-foot diameter area around your tree. “Royal Purple” requires only minimal pruning in late winter or early spring just before it begins to put on new foliage. San Jose scales and oblique-banded leaf rollers may attack “Royal Purple” smoketrees. After the first month, give the shrub 5 to 6 gallons of water once or twice each week. ..I’ve got exactly the same problem. Why Is My Winterberry Losing Black Leaves? Woody plants need watering less frequently than tender annuals, lawn, or herbaceous plants. Tissue culture. Reannan Raine worked for 30 years in the non-profit sector in various positions. Dramatic, long lasting, pinkish purple, smoke-like airy seed clusters backed by reddish-purple foliage creates a prized small tree or large accent shrub. Scrape light infestations off with an old toothbrush. The infected leaves and twigs should be removed. The Royal Purple Smoke tree looks great as a single specimen or as a hedge or group planting. Smoke bush is drought-resistant and overwatering can result in few or no blooms, and makes it more susceptible to disease. The smoketree (sometimes also called smoke tree or smoke bush) is an awesome specimen tree to have in your garden or landscape. 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. Avoid fertilizing (directly or indirectly) with high nitrogen (lawn) fertilizer; nitrogen promotes stem and leaf growth at the expense of flower production. Foliage holds color all summer, turning scarlet in autumn. There are also natural occurrences in South Tyrol and Ticino. Ordinarily, 2 gallons of water each morning is sufficient; however, this varies depending on how quickly the soil drains. Natural scale predators usually keep them under control. Cotinus coggygria, syn. Around fifteen year old smoke, bush tree, thriving, healthy and full of flowers. The shrub may live for only one week or several years after being infected. 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 effect is the result not of flowers, but of tiny pinkish hairs on the small fruits that occur in large clusters. Growing Royal Purple Smoke Trees. Leaf drop, the falling of leaves that appear healthy, is also common with both varieties. * Common name: Purple smoketree ‘Royal Purple’ * Botanical name: Cotinus coggygria ‘Royal Purple’ * What it is: A small tree or large shrub with rich, deep-burgundy, oval leaves and airy, pinkish flower clusters in summer that look like puffs of pink smoke. Smoke trees tend to have a rangy, splayed growth habit. This issue sponsored by: I have a purple smoke tree that is about 9 years old. Cotinus coggygria‘Royal Purple’ -- ‘Royal Purple’ Smoketree Page 3 Figure 3. But they shrivel instead of producing the smoke effect. Q. Wisteria And Smoke Tree Care - We have had a wisteria vine for four years and have not had any Ms. Raine is hoping to have her first novel published soon. Best offers for your Garden - https://amzn.to/2InnD0w ----- Smoke Tree Problems. The smoke tree belongs to the sumac family (Anacardiaceae), so it is related to the vinegar tree. Considered a susceptible tree, the smoke tree may die in a single season. Award-winner Cotinus coggygria 'Royal Purple' (Smokebush) is a bushy large deciduous shrub noted for its attractive foliage of rounded leaves. 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. 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. This slow growing, open-crown, round, small tree eventually reaches to 12 to 15 feet tall (occasionally 20) and 10 to 12 feet wide. Keep the mulch a few inches away from the stems, though, to prevent stem rot. 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. Flowers followed by ovoid fruits in late summer. Most established trees and shrubs can go weeks without supplemental watering except in very hot or windy weather. Find helpful customer reviews and review ratings for Royal Purple Smoke Bush - Cotinus - Flowering Shrub - 4" Pot at Amazon.com. 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 … Leaf spots, sometimes called leaf rust, can affect both varieties. If you see your smoke tree wilting, it may be a serious fungal disease called verticillium wilt. The royal purple smoke tree, or Cotinus coggygria, produces large purple flowers in the spring and early summer. As trees go it’s very compact, usually topping out at 10 to 12 feet tall and wide. ‘Royal Purple’ is a compact, purple-leaved version of the European species. One is the tree was hit by some sort of herbicide. Q. Plume like panicles of inconspicuous, deep pink flowers in summer, giving a smoke-like appearance. 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. 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. If the branches are still green/ alive, keeping it watered may save it. Shredded tree bark, wood chips and pine needles work well. 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