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Corylus (cornuta)

Betty Young
Nurseries Sr Manager
Bldg 201, Fort Mason
San Francisco, California 94123
415-331-6917
415-331-7521 (fax)
byoung@ggnpa.org

Family Scientific Name: Betulaceae
Family Common Name: Birch Family
Scientific Name: Corylus cornuta (A. DC.) Sharp californica (A. DC.) Sharp
Common Synonym: Corylus californica (A. DC.) Rose
Common Name: California Hazelnut
Species Code: CORCOR
Ecotype: Tennessee Valley, California
General Distribution: C. cornuta var. californica is found on moist slopes and banks below 7,000 feet elevation, in the coast ranges and Sierras; from British Columbia to Santa Cruz County, California.
Propagation Goal: plants
Propagation Method: vegetative
ProductType: Container (plug)
Stock Type: Treeband #10
Time To Grow: 0
Target Specifications: Height: N/A<br> Caliper: N/A<br> Root System: Firm plug in container.
Propagule Collection: Semi-Hardwood cuttings are collected between July 1st and November 1st.
Cutting diameter is 1.2 cm (0.5 inch).
Cutting length is 12.5 cm (5 inches) with at least 3 nodes.
Propagule Processing: Cuttings are kept moist and cool prior to treatment.
Pre-Planting Treatments: Cuttings are dipped in a mild bleach solution for 30 seconds.
Cuttings are treated with Hormex (3000 ppm IBA) rooting powder and struck in flats containing 3:1 Perlite/Vermiculite.
30 Cuttings are struck 2 inches deep per flat.

% Rooting:50%
Growing Area Preparation/
Annual Practices for Perennial Crops:
Fully Controlled Greenhouse.
Flats are kept in the greenhouse and watered with an automatic mist system untilroots are fully developed.
Establishment Phase: Planting Method: Transplanting Cuttings.

Time to Transplant:50 days.
Cuttings are transplanted to individual containers 4"x4"x 10"tubes (Treeband #10) containing standard potting mix of peat moss, fir bark, perlite, and sand. Cuttings are placed in the shadehouse.
Transplant Survival averages 60%.
References: A California Flora and Supplement, Munz, P., University of California Press, Berkeley and London, 1973.

Citation:

Young, Betty. 2001. Propagation protocol for production of Container (plug) Corylus cornuta (A. DC.) Sharp plants Treeband #10; San Francisco, California. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/05/03). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.