Ceanothus (thyrsiflorus)
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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: | Rhamnaceae | ||
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| Family Common Name: | Buckthorn Family | ||
| Scientific Name: | Ceanothus thyrsiflorus Eschsch. | ||
| Common Synonym: | Ceanothus thyrsiflorus Eschsch. repens | ||
| Common Name: | Blueblossom Ceanothus | ||
| Species Code: | CEATHY | ||
| Ecotype: | Marin County, California | ||
| General Distribution: | C. thyrsiflorus is found in the coastal range, from Santa Barbara County, California, to southern Oregon. | ||
| 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 3rd and June 20th. Seed is very dark brown, almost black at maturity. Seeds/gram: 77 |
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| Propagule Processing: |
Seed Cleaning:Mature hulls are spearted from seed by rolling over with a rolling pin.Seed fill varies from year to year, so it is important to check for seeds first. Storage Conditions: Seeds are kept dry and stored in a refrigerator. |
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| Pre-Planting Treatments: |
Seeds are scarified in a hot water bath for 20 minutes and then soaked for 48 hours. Heat water to a boil, place seeds in water and immdeiately remove from heat source Add cool water after 20 seconds. Seeds are placed in cold stratification for 84 days. many seeds sprout after 12 weeks in stratification. |
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| Growing Area Preparation/ Annual Practices for Perennial Crops: |
Shadehouse. Sowing Method: Direct Seeding. 2 seeds are sown per 2"x7" tubes (Deepot 16) container containing standard potting mix of peat moss, fir bark, perlite, and sand. Seeds are mixed with media to sow and are covered 2 times the depth to diameter of seed. Containers are watered in with an automatic irrigation/mist system.It is very important not to overwater seeds. Seeds are sownon July 1st. % Germination:59% |
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| 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. Transplant Survival averages 50%. |
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| Length of Establishment Phase: | 2.5 months | ||
| Active Growth Phase: | Do not over water seedlings. | ||
| 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) Ceanothus thyrsiflorus Eschsch. plants Deepot 16; San Francisco, California. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/12/21). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.
