Solidago (californica)
|
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: | Asteraceae | ||
|---|---|---|---|
| Family Common Name: | Sunflowers | ||
| Scientific Name: | Solidago californica | ||
| Common Name: | California goldenrod | ||
| Ecotype: | Seed collected along Antelope Creek in eastern Tehama County, California | ||
| General Distribution: | California, Oregon and Baja California. Woodland margins, grassland and disturbed soils below 2,300 meters (Hickman 1993). | ||
| Propagation Goal: | plants | ||
| Propagation Method: | seed | ||
| ProductType: | Container (plug) | ||
| Stock Type: | Potted nursery stock | ||
| Time To Grow: | 0 | ||
| Target Specifications: | First year plant 10-30 cm tall with 1-2 mm diameter rhizome. | ||
| Propagule Collection: | Seed may be cleanly stripped in large quantities from ripe fruiting racemes between late summer and fall. | ||
| Propagule Processing: | Very clean seed (with pappus) may be cleanly stripped in large quantities from ripe fruiting racemes between late summer and fall. Approximately 1,00-2,000 seeds per gram, depending on individual, population, year and cleanliness of seed. | ||
| 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: |
During November 2004, 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. This species took several months for any substantial germination to take place. Extremely poor (< 1%) germination was observed within the first 1.5 months, however, trays which were set-aside after germination trials continued to produce new seedlings until June 2005 (approximately 7months after initial seeding), though overall germination rates remained below 1%. | ||
| Establishment Phase: | Extremely low germination rates (> 1%) were observed and initial germination for seed sown in outdoor cold frames was observed within about 6 weeks (approximately 3 months). Germination continued untils approximately 5 months after initial seeding, though overall germination remained below 1%. Robust seedlings with spreading rhizomatous root systems were established by most individuals by the first fall. | ||
| Length of Establishment Phase: | Transplantable sprouts were established within approximately 8 weeks. | ||
| Active Growth Phase: | Active growth was observed approximately 2 months after seeding (February) until late-summer/early fall. The active growth phase can be extended well into summer by keeping soil moist. This species appears to grow well in moist soil well into summer with little problem. | ||
| Length of Active Growth Phase: | 6-8 months (later winter to late summer; older plants may not initiate above-ground growth until spring). | ||
| Hardening Phase: | Hardening is not necessary as the active growth is generally initiated between mid-winter and continues until early fall, at which time senescenc occurs. Growth resumes following fall rains and possibly not until late winter/early spring (for older plants). | ||
| Harvesting, Storage and Shipping: | If soil is kept moist, individuals can be grown through the summer. | ||
| Other Comments: | Flowering: Late June - October. Seed collection: August-October (Oswald and Ahart 2002); Approximately 1,200 seeds per gram; Extremely low germination rates, but seed is very tiny and generally abundant year-to-year. Established seedlings may form small shrubs within the first year of growth. | ||
| 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) Solidago californica plants Potted nursery stock; University of California - Chico Chico, California. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/05/18). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.
