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Castilleja (wightii)

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: Scrophulariaceae
Family Common Name: Figwort Family
Scientific Name: Castilleja wightii Elmer
Common Synonym: Castilleja affinis Hook & Arn. affinis
Common Name: Paintbrush
Species Code: CASWIG
Ecotype: Marin County, California
General Distribution: C. wightii is found on dry slopes and banks from Medocino to Santa Cruz and Anacapa islands, California.
Propagation Goal: plants
Propagation Method: seed
ProductType: Container (plug)
Stock Type: Deepot 16
Time To Grow: 0
Target Specifications: Height: N/A<br> Caliper: N/A<br> Root System: Firm plug in container.
Propagule Collection: Seeds are collected between June 12th and November 17th.
Mature inflorescences are brown.
Propagule Processing: Seed Cleaning:N/A
Storage Conditions: N/A
Pre-Planting Treatments: Seeds are cold stratified for 14 days. Seeds can be stratified for 3 weeks or longer as this species sprouts well under refigeration.
Growing Area Preparation/
Annual Practices for Perennial Crops:
Fully Controlled Greenhouse.
Sowing Method: Transplanting Germinants.
Seeds are sown in flats containing Sunshine Mix #4 Aggregate Plus (peat moss, perlite, major and minor nutrients, gypsum, and dolomitic lime).
Seeds are mixed with media to sow and are surface sown.
Flats are watered in with an automatic irrigation system and placed on a heated bench.
% Germination:50%
Establishment Phase: Seeds germinate 40 days after sowing.
Seedlings are transplanted 40 days after germination to individual containers 2"x7" tubes (Deepot 16) containing standard potting mix of peat moss, fir bark, perlite, and sand.
Plants are moved to the shadehouse.
Transplant Survival averages 60%.
Length of Establishment Phase: 2.5 months
Active Growth Phase: After seedlings are well established, they are companion planted with other species.
Plants require regular and heavy fertilization.
References: A California Flora and Supplement, Munz, P., University of California Press, Berkeley and London, 1973.

Citation:

Young, Betty. 2002. Propagation protocol for production of Container (plug) Castilleja wightii Elmer plants Deepot 16; San Francisco, California. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/03/28). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.