Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

California hazel (Corylus cornuta var. californica) -- also commonly called beaked hazelnut or California hazelnut -- is an evergreen shrub in the Birch family (Betulaceae). Delicate stems are clothed in velvety birch-like leaves which turn golden yellow in autumn. Springtime brings dangling cream-colored catkins before the leaves appear, which can resemble tiny ornaments when viewed from a distance in a forest. Although ruby red, the flowers are quite small, and escape notice unless one is looking for them.

Butterflies and moths are attracted to the flowers and Early Hairstreak butterflies use the plant to lay their eggs. Wild birds feed on the high-protein winter buds and spring catkins. Hazelnuts are famous for their fruit, which is a delicious nut that is enclosed in a papery, beaked-shaped husk. Our native hazelnut, while not as productive as the commercial crop (European Hazelnut, Corylus avellana), may require protection from wildlife if one wishes to grow it for its nuts.

California hazel thrives as an understory shrub or small tree in Woodland habitats, flourishing in part to full shade and slightly moist, well-drained soil near creeks, streams, or under dense tree canopies. Gardeners who are interested in growing their own food using Permaculture or Food Forest methods, can include this plant in the shrub layer. For those who wish to attract wildlife, this is also a wonderful choice. California hazel adds a delicate, ethereal quality to a woodland garden and those with shady yards will find this shrub to be a great addition to their landscapes.

Plant type

Shrub

Size

5 - 26 ft Tall
10 ft Wide

Form

Upright

Growth rate

Moderate

Dormancy

Winter Deciduous

Calscape icon
Color

Red, Yellow

Flowering season

Spring, Winter

Special uses

Deer resistant

Sun

Partial Shade, Deep Shade

Water

Low

Summer irrigation

Max 2x / month once established

Ease of care

Moderate

Cold tolerance

Tolerates cold to 0° F

Soil drainage

Fast, Medium, Slow

Soil description

Tolerant of a variety of garden soils as long as sufficient moisture is available.
Soil PH: 5.0 - 7.0

Propagation

For propagating by seed: 2-3 (and up to 6) mos. stratification; use fresh seeds.

Site type

Usually found in openings in various types of woodland or forest

Plant communities

Chaparral, Foothill Woodland, Lodgepole Forest, Red Fir Forest, Valley Grassland, Yellow Pine Forest

Can be used with a variety of woodland and forest plants including:


Trees: Fir (Abies spp.), Red Alder (Alnus rubra), Madrone (Arbutus menziesii), Douglas Fir (Pseudotsuga menziesii), Bigleaf Maple (Acer macrophyllum), Oaks (Quercus spp.), Pines (Pinus spp.), and Bay Laurel (Umbellularia californica).




Shrubs: Buckeye (Aesculus californica), Manzanita (Arctostaphylos spp.), Mahonia (Berberis spp.), Ceanothus spp., Dogwood (Cornus spp.), Coffee Berry (Frangula spp.), and Toyon (Heteromeles arbutifolia)

Bats
Caterpillars
Butterflies

Butterflies and moths supported

1 confirmed and 44 likely

Confirmed Likely

Polyphemus moth

Antheraea polyphemus

Acleris santacrucis

Frosty Dagger Moth

Acronicta brumosa

Funerary Dagger Moth

Acronicta funeralis