Tree Purdue Plant Doctor Available Cornus × rutgersensis 'Rutban' [sold as Aurora®] (Stellar Group) [Aurora Dogwood] The Stellar Series is a collection of hybrids of the Flowering Dogwood (Cornus florida) and the Kousa Dogwood (C. kousa), developed by Dr. Elwin Orton, Jr. of Rutgers University. These vigorous, sterile hybrids are resistant to the Common Dogwood Borer (Synanthedon scitula) and Dogwood Anthracnose (Discula distructiva), which can severely affect the Flowering Dogwood. 'Rutban' is a strongly upright, abundant bloomer with white to creamy-white floral bracts. Purdue Plant Doctor Available
Shrub/Tree Audio Recording AvailablePurdue Plant Doctor Available Cotinus coggygria [Common Smokebush] Usually dioecious, so heavy-fruiting clonal material should be used when possible. Can be pruned to low framework each year to promote plant coloration which occurs best on vigorous stems. Misty fruiting panicles give the species its name. The fine-textured hairs on the fruit pedicels and peduncles change colors, being best when tinted smoky pink. Audio Recording AvailablePurdue Plant Doctor Available
Shrub/Tree Audio Recording AvailablePurdue Plant Doctor Available Cotinus coggygria 'Purpureus' [Purpureus Smokebush] 'Purpureus' is known for its purple-pink fruiting panicles. Can be pruned to low framework each year to promote plant coloration which occurs best on vigorous stems. Misty fruiting panicles give the species its name. The fine-textured hairs on the fruit pedicels and peduncles change colors, being best when tinted smoky purple to pink. Audio Recording AvailablePurdue Plant Doctor Available
Shrub/Tree Purdue Plant Doctor Available Cotinus obovatus [American Smoketree] Cotinus obovatus can be a large shrub or small tree and is most noted for its extraordinary fall color and fluffy, smoke-like fruiting panicles. It is a tough plant, adapted to poor, rocky, limestone soils. Purdue Plant Doctor Available
Shrub/Tree Purdue Plant Doctor Available Cotinus × 'Grace' [Grace Smokebush] 'Grace' has become a popular cultivar with its purple emerging leaves and giant panicles of smokey, pink flowers. The "flowers" are actually misty fruiting panicles that give the species its name. The fine-textured hairs on the fruit pedicels and peduncles change colors, being best when tinted smoky pink. Can be pruned to low framework each year to promote plant coloration which occurs best on vigorous stems. Purdue Plant Doctor Available
Shrub Audio Recording AvailablePurdue Plant Doctor Available Cotoneaster apiculatus [Cranberry Cotoneaster] An excellent groundcover for full sun in almost any soil, except that weeds encroach easily for the first few years. Use effective mulch. Subject to damage from fireblight occasionally, and from mites, especially in dry situations. Not tolerant of wet sites. Collects litter and leaves (in the fall), which are difficult to rake out. Audio Recording AvailablePurdue Plant Doctor Available
Shrub Purdue Plant Doctor Available Cotoneaster dammeri 'Coral Beauty' [Coral Beauty Bearberry Cotoneaster] 'Coral Beauty' is a fast-growing, prostrate (1-2' high), evergreen shrub that makes a good, quick-effect groundcover. It has excellent, glossy evergreen foliage and produces an abundance of coral-red fruits. Unfortunately its appearance tends to become ratty with age. Purdue Plant Doctor Available
Shrub Audio Recording AvailablePurdue Plant Doctor Available Cotoneaster divaricatus [Spreading Cotoneaster] One of the most ornamental and trouble-free of the cotoneasters, although subject to the troubles of Rosaceous plants on occasion. These include lacebugs, scale, mites, and fireblight, but they are not usually a serious problem. Audio Recording AvailablePurdue Plant Doctor Available
Shrub Audio Recording AvailablePurdue Plant Doctor Available Cotoneaster horizontalis [Rockspray Cotoneaster] C. horizontalis is a low, flat, dense shrub with horizontally spreading branches creating a tiered effect. A generally trouble-free cotoneaster, although can be subject to the troubles of Rosaceous plants on occasion. Fireblight is more problematic for this species in the South. Audio Recording AvailablePurdue Plant Doctor Available
Tree Purdue Plant Doctor Available Crataegus × lavalleei [Lavalle Hawthorn] The Lavalle Hawthorn is a small, rounded tree that resulted from a cross of Crataegus mexicana and C. crusgalli. Quite resistant to rust and less thorny than its Cockspur Hawthorn parent. Purdue Plant Doctor Available
Indiana Native
![Cornus × rutgersensis 'Rutban' [sold as Aurora®] (Stellar Group)](https://www.arboretum.purdue.edu/explorer/wp-content/uploads/sites/2/2023/01/NAME-21290-150x150.jpg)
