Asteraceae (Erigeron)
Erigeron (foliosus)
Asteraceae
Composite, Aster, Daisy, Sunflower
Erigeron
foliosus
Leafy fleabane
ERFO2
Rogue River-Siskiyou National Forest, Oregon
Grows in dry, often rocky soils. Found in Oregon and California and parts of northwestern Mexico. Some sources also show a disjunct population in southern Washington.
Plants
Seed
Container (plug)
262 ml (16 in3) container
20 weeks
Stock Type: Container seedling Root System: Firm plug in container.
Due to small seed size, the easiest method is to sow seed into trays filled with stabilized medium plugs (Q-plugs). Trays are sealed inside plastic bags and placed into refrigeration at 1 to 3 °C for 70 days. Trays are checked weekly and kept moist throughout the stratification period. If mold is evident, trays should be treated with 1% hydrogen peroxide.
Greenhouse growing facility. Q-plugs are lightly covered with nursery grit. Seedlings are transplanted to target containers approximately 3 weeks following removal from stratification. Growing medium used is 40:20:20:20 peat:composted fir bark:perlite:pumice with Nutricote controlled release fertilizer (18N:6P2O5:8K2O with minors; 180-d release rate at 21C) at the rate of 1.5 gram Nutricote per 262 ml container.
Germination is uniform and quite rapid. It is usually complete in 10 to 14 days. Following germination (while still in Q-plugs), plants are fertilized with soluble 12-2-14-6Ca-3Mg at 75 ppm for 1 week.
2 weeks
Root development is somewhat slow. Shoot growth can be considered moderate throughout the active growth phase, but can be pushed to reach target height and plug density in the first year. Soluble fertilizer (20-9-20 NPK, 20-18-18 NPK, or 17-5-24 NPK) at 150 ppm is applied weekly throughout the growing season.
18 weeks
No dry-down is done to induce dormancy. Seedlings are moved to an outdoor growing area in late September.
3 to 4 weeks
Harvest Date: Early October Storage Conditions: Seedlings are usually outplanted in fall. No storage except in outdoor growing area. Plants are well irrigated prior to shipping and shipped in containers.
Perennial 5 recognized varieties: var. confinis (CA and OR), var. foliosus (CA), var. franciscensis (CA), var. hartwegii (CA), and var. mendocinus (CA).
Bonner FT, Karrfalt RB, Nisley RG, editors. 2008. The woody plant seed manual. Washington (DC): USDA Forest Service. Agriculture Handbook 727. 1223 p. Dorena Genetic Resource Center Propagation Records, unpublished. [FNA] Flora of North America. nd. Erigeron foliosus Nuttall. Vol 20:311. URL: http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066598 (accessed 20 Feb 2020). [ITIS] Integrated Taxonomic Information System. Erigeron foliosus Nutt. URL: https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=502387#null (accessed 20 Feb 2020). Keil DJ, Nesom GL. 2012. Erigeron foliosus. In Jepson Flora Project (eds.). Berkeley (CA): University of California, The Jepson Online Interchange California Floristics. URL: http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=2676 (accessed 20 Feb 2020). Turner M. 2018. Erigeron foliosus. Bellingham (WA): Turner Photographics. URL: igeron foliosus https://www.pnwflowers.com/flower/erigeron-foliosus (accessed 20 Feb 2020). USDA Natural Resources Conservation Service. Erigeron foliosus Nutt. leafy fleabane. URL: https://plants.usda.gov/core/profile?symbol=ERFO2 (accessed 20 Feb 2020).
Riley, Lee E.; Kamakura, Renata. 2020. Propagation protocol for production of Container (plug) Erigeron foliosus Plants 262 ml (16 in3) container; USDA FS - Dorena Genetic Resource Center Cottage Grove, Oregon. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2025/08/27). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.
