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Genus Corylus (Filbert, Hazel)

Corylus Corylus avellana 'Contorta' Photo/Illustration: Michelle Gervais
KOR-ih-lus Common Name: Filbert, Hazel
Corylus is a genus of a dozen or so species of deciduous shrubs and trees from woodlands in northern temperate regions grown mostly for their foliage and catkins. Some also produce edible nuts. Use in a shrub border or as specimens.
 Noteworthy characteristics: Nice foliage; yellow catkins.
 Care: Plant in full sun or partial shade in fertile, well-drained soil that is preferably alkaline. Remove suckers. Grow plants with colored leaves in full sun.
 Propagation: Sow newly ripened seed in a seedbed. Cultivars may be grafted in winter or layered in fall.
 Problems: Bud mites, tent caterpillars, webworms, powdery mildew, blight, canker, dieback, mushroom rot rot, fungal spots, and rust may affect plants.

Species, varieties and cultivars for genus Corylus

Corylus avellana 'Contorta' Corylus avellana 'Contorta'
(Harry Lauder’s walking stick, Corkscrew hazel) (2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This upright, tree-like shrub has heart-shaped, toothed, mid-green leaves. Pendent yellow catkins are borne in late winter and early spring. Strongly twisted, spiraling shoots provide year-round interest.