Erigeron (peregrinus)

Tara Luna USDI NPS - Glacier National Park West Glacier, Montana 59936 (406) 888-7835 http://plant-materials.nrcs.usda.gov/azpmc

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Family Scientific Name:	Asteraceae
Family Common Name:	Sunflower family
Scientific Name:	Erigeron peregrinus (Pursh) Greene callianthemus (Greene) Cronq.
Common Name:	Subalpine Wandering Daisy
Species Code:	ERIPER
Ecotype:	Subalpine meadows, Logan Pass,Glacier National Park,MT.
General Distribution:	E. peregrinus is a widespread cordilleran species,occurring subalpine and alpine habitats. It is found from Alaska south to Califonia and New Mexico.
Propagation Goal:	plants
Propagation Method:	seed
ProductType:	Container (plug)
Stock Type:	160 ml conetainers
Time To Grow:	4 Months
Target Specifications:	Height: 4 to 6 true leaves, 5 cm<br> Caliper: n/a<br> Root System: Firm plug in 160 ml conetainer.
Propagule Collection:	Seeds are hand collected in early September when achenes separate easily from the receptacle. Seeds are dark gray at maturity. Seeds are collected in paper bags and kept in a well ventilated drying shed prior to cleaning.
Propagule Processing:	Seeds are cleaned with a hammermill and office clipper and screened at NRCS. Seed longevity is 3 to 5 years at 3 to 5C in sealed containers. Seed dormancy is classified as non-deep physiological dormancy. As with many autumn maturing members of the Asteraceae, this dormancy is easily overcome by dry storage for 6 months or less. % Purity: 100% % Germination: 34% to 98%
Pre-Planting Treatments:	No stratification is necessary. However, a brief 30 to 60 day cold, moist stratification will improve germination uniformity.
Growing Area Preparation/ Annual Practices for Perennial Crops:	Greenhouse and outdoor nursery growing facility. Sowing Method: Direct Seeding. Seeds are covered with medium. Growing medium used is milled sphagnum peat, perlite, and vermiculite with Osmocote controlled release fertilizer (13N:13P2O5:13K2O; 8 to 9 month release rate at 21C) and Micromax fertilizer (12%S, 0.1%B, 0.5%Cu, 12%Fe, 2.5%Mn, 0.05%Mo, 1%Zn) at the rate of 1 gram of Osmocote and 0.20 gram of Micromax per 172 ml conetainer. Conetainers are filled and sown in late fall and irrigated thoroughly prior to winter stratification.
Establishment Phase:	Seeds germinate uniformly in 8 days at 22C. Germination to true leaf stage is 7 to 15 days. Seedlings are thinned at this stage.
Length of Establishment Phase:	4 weeks
Active Growth Phase:	There is rapid root and shoot development during the growing season. Plants are fertilized with 20-20-20 liquid NPK at 100 ppm weekly during the growing season. Some plants were flowering 10 weeks following germination.
Length of Active Growth Phase:	8 weeks
Hardening Phase:	Plants are fertilized with 10-20-20 liquid NPK fertilizer at 200 ppm in early fall; pots are leached with water, irrigation is gradually reduced through September and October.
Length of Hardening Phase:	4 weeks
Harvesting, Storage and Shipping:	Total Time To Harvest: 4 months Harvest Date:July and August Storage Conditions: Overwinter in outdoor shadehouse under insulating foam and snow.
Length of Storage:	5 months
Other Comments:	E. peregrinus produce an extensive rhizomatous root mass that quickly fills conetainers. Plants must be potted into larger containers or outplanted the first year. There are 7 recognized botanical varieties of this species.
References:	Flora of the Pacific Northwest, Hitcock and Cronquist, Univ. of Washington Press, 7th printing, 1990. Seed Germination Theory and Practice, 2nd Edition, Deno, Norman, publ.1993. Glacier Park Native Plant Nursery Propagation Records, unpublished. Seeding Rate Statistics for Native and Introduced Species, National Park Service, Hassell, Wendel, April 1996. 1999 Revegetation Monitoring Report, Glacier National Park, Asebrook, J. and Brenneman, B., unpublished.

Citation:

Luna, Tara; Corey, Susan; Evans, Jeff; Wick, Dale; Hosokawa, Joy. 2008. Propagation protocol for production of Container (plug) Erigeron peregrinus (Pursh) Greene plants 160 ml conetainers; USDI NPS - Glacier National Park West Glacier, Montana. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/04/24). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.