Tree 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 severly affect the Flowering Dogwood. 'Rutban' is a strongly upright, abundant bloomer with white to creamy-white floral bracts.
Shrub Corylus avellana [European Filbert] Corylus avellana is a tough, usually a large, suckering, thicket-forming shrub, but it can also be grown as a small tree, if the suckers are controlled. The nut is edible and Corylus avellana is frequently grown for production in Europe.
Shrub Corylus avellana 'Contorta' [Harry Lauder's Walkingstick] This unique shrub provides excellent winter interest with its strongly twisting, contorted branches. Usually grown in grafted form, so it is important to immediately remove any root suckers.
Tree Corylus colurna [Turkish Filbert] Horizontal branch structure (with lower branches often touching the ground), strong central leader, and bark give good winter character. Does great in hot summers and cold winters, very adaptable. Quite drought tolerant after establishment, leaves stay green when maples scorch. Needs supplemental water immediately after transplanting and until established. Otherwise drought tolerant. Nuts are edible and can be roasted.
Shrub/Tree 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.
Shrub/Tree 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.
Shrub/Tree 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.
Shrub/Tree 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.
Shrub 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.
Shrub Cotoneaster multiflorus [Many-flowered Cotoneaster] Salt tolerant and pH adaptable, and has best appearance when grown as multi-stemmed and branching to the ground. Mites, aphids, canker, and fireblight can be problems in stressful sites.
