Dodecatheon (clevelandii)
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John W. Hunt Project Manager/Ecologist University of California - Chico California State University, Chico Chico, California 95929-0555 530-228-7594 530-898-4363 (fax) jwhunt@csuchico.edu www.idahobotanicalgarden.org |
| Family Scientific Name: | Primulaceae | ||
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| Family Common Name: | Primrose | ||
| Scientific Name: | Dodecatheon clevelandii | ||
| Common Name: | Lowland shooting stars | ||
| Ecotype: | Seed collected at The Nature Conservancy's Vina Plains Preserve, Tehama County, California | ||
| General Distribution: | Northern and central Sierra Nevada foothills, central High Sierra Nevada, Great Central Valley, Central Western California (except Central Coast), Southwestern California (except San Gabriel Mountains)and Baja California. Grassy slopes and flats below 600 meters (Hickman 1993). | ||
| Propagation Goal: | plants | ||
| Propagation Method: | seed | ||
| ProductType: | Container (plug) | ||
| Stock Type: | Potted nursery stock | ||
| Time To Grow: | 9 Months | ||
| Target Specifications: | Small delicate rosette forms by the end of the first spring. | ||
| Propagule Collection: | Fruiting heads may be collected from late spring until late summer (capsules can split open and lose seed by midsumer). | ||
| Propagule Processing: | Capsules may be collected well into summer. Seed may be separated from capsules fairly rapidly by briefly blending dry capsules in a blender. Very small seed may then be separated from the chaff with a sieve. Approximately 900-1,200 seeds per gram (depending of cleanliness of sample). | ||
| Pre-Planting Treatments: | None, though clean dry seed was placed in dry, cold storage following collection and prior to sowing. | ||
| Growing Area Preparation/ Annual Practices for Perennial Crops: |
Seed was directly sown into 1.5" deep flats containing a potting mixture of approximately 1:1:1:2 sand:pumice:peat moss:fir bark mixture. Flats were placed in an outdoor cold frame from late-fall though spring. Most seedlings were transplanted into various sized pots ranging from D-pots to 3x4" plastic containers (some seedlings were not transplanted) using the same potting mixture. Better growth may be obtainined during the first year by avoiding transplanting (seed directly into larger containers rather than flats). Based on results of direct seeding in the field, better above and below gound growth may be obtained by planting in native soil (e.g.loam) rather than potting soil. Loam appears to have lower fluctuations in moisture and temperature that stress seedlings and reduce growth during the first year. Dormancy can be induced by letting pots dry-down and then placing in dry storage until the following fall rains. Plants should be allowed to go dormant by early summer. Growth from seed to dormant seedling follows the first fall rains through the spring-summer dry-down. | ||
| Establishment Phase: | Initial germination was observed within 2 weeks; Observed germination rates were 47% (Hogback) and 24% (Lower Dye Creek) for seed cold, moist stratified in vermiculite at approximately 44F. For seed sown in outdoor coldframes germination rates of 44% (Lower Dye Creek) to 46% (Hogback) were observed. A vigorous rosette will be produced within 6-8 months. | ||
| Length of Establishment Phase: | Transplantable sprouts were established within | ||
| Other Comments: | Flowering: Mid January - April (Oswald and Ahart 2002). Seed collection: May-June (July). Transplanted seedlings showed some sign of stress and seedlings transplanted earlier showed more vigorous growth subsequent to transplanting. Seed sown directly in the field showed above and below ground growth rates comparabel too, or better than seed grown under controlled conditions in well-drained potting soils. Heavier native soils may provide better growing conditions when kept moist compared to well-drained potting soils whose moisture and temperature may fluctuate more readily. Partial funding for this project was made available by the California State University Agricultural Research Initiative (ARI). | ||
| References: | Hickman, James, Ed. 1993. The Jepson Manual: Higher Plants of California. University of California Press, Berkeley, California.; Oswald, Vern and Lowell Ahart. 2002. Selected Plants of Northern California and Adjacent Nevada. CNPS | ||
Citation:
Leigh, Mark; Pushnik, James C.; Boul, Rachelle D.; Brown, Matthew R.; Hunt, John W.; Koenig, David A.. 2006. Propagation protocol for production of Container (plug) Dodecatheon clevelandii plants Potted nursery stock; University of California - Chico Chico, California. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/07/02). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.
