Astragalus (nuttallii)
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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: | Fabaceae | ||
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| Family Common Name: | Pea Family | ||
| Scientific Name: | Astragalus nuttallii (Torr. & Gray) J.T. Howell | ||
| Common Name: | Nuttall's Milkvetch | ||
| Species Code: | ASTNUT | ||
| Ecotype: | California | ||
| General Distribution: | A. nuttallii is found in dunes and bluffs along the ocean in coastal strand communities; from 10 to 300 feet elevation; from Monterey Bay south to Point Conception, California. | ||
| Propagation Goal: | plants | ||
| Propagation Method: | seed | ||
| ProductType: | Container (plug) | ||
| Stock Type: | 4 inch pot | ||
| Time To Grow: | 0 | ||
| Target Specifications: | Height: N/A Caliper: N/A Root System: Firm plug in container. | ||
| Propagule Collection: |
Seeds are collected between August 1st and September 30th. Mature legume pods are dry at maturity. |
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| Propagule Processing: | Seed Cleaning: Pods are soaked in water to extract seeds.Storage Conditions: Seeds are kept dry and stored at room temperature. | ||
| Pre-Planting Treatments: | Seeds are soaked in water for 24 hours prior to sowing. Stratification has not been tried but may enhance germination. | ||
| 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 covered with media. Flats are hand watered. Seeds are sown on July 15th. % Germination: 20% |
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| Establishment Phase: |
Seeds germinate 45 days aftersowing. Seedlings are transplanted 45 days after germination to individual containers (4 inch pots) containing 3 parts standard potting mix of peat moss, fir bark, perlite, and sand and 1 part sand. Transplant Survival averages 90%. |
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| Length of Establishment Phase: | 3 to 4 months | ||
| Other Comments: | Astragalus germinates over a long time period; up to 4 months. Do not remove sown flats too early. | ||
| 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) Astragalus nuttallii (Torr. & Gray) J.T. Howell plants 4 inch pot; San Francisco, California. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2025/04/10). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.
