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The Forest Service National Center for Reforestation, Nurseries, and Genetic Resources (RNGR) is a leading source of technical information for nurseries and land managers regarding production and planting of trees and other native plants for reforestation, restoration, and conservation.

 
NPN Protocol Details Image

Erigeron (speciosus)

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

Family Scientific Name: Asteraceae
Family Common Name: Sunflower family
Scientific Name: Erigeron speciosus (Lindl.) DC.
Common Name: Aspen daisy
Species Code: ERISPE
Ecotype: Waterton Lakes NP
General Distribution: Aspen daisy is a perennial species that ranges from southern British Columbia and Alberta south to Oregon, New Mexico and Arizona. It ranges east to South Dakota. It is common on moist and shallow soils or on heavier loam soils in aspen parklands, mountain meadows and open mixed coniferous forests (Hitchcock et al 1971).
Propagation Goal: plants
Propagation Method: seed
ProductType: Container (plug)
Stock Type: 116 ml (7.0 cu. in)
Time To Grow: 5 Months
Target Specifications: Firm root plug with multiple true leaves.
Propagule Collection: The fruits are achenes that are dark brown at maturity with a tan feathery pappus borne at the top of the achene. Achenes mature in September. Seeds are dispersed by wind.
Collect fully achenes just prior to dispersal by hand.
Propagule Processing: Large collections can be cleaned with a hammermill and air column separator. Small collections can be cleaned by rubbing the achenes over a screen to separate the pappus from the achenes.
Pre-Planting Treatments: Seeds of other Erigeron species exhibit physiological dormancy.
General recommendations include cold stratifying seeds for 30 to 60 days. Dry stored seeds germinate without pretreatment, but stratification gives a more uniform germination.
Growing Area Preparation/
Annual Practices for Perennial Crops:
Seedlings are grown in a fully automated greenhouse. Seedlings are grown in Sunshine mix #2 wit timed released fertlizer incorporated into the growing medium.
Establishment Phase: Seeds are seeds need to be kept evenly moist during germination and establishment.
Length of Establishment Phase: 1 month
Active Growth Phase: During active growth, seedlings should be spaced as needed for good air flow between the containers. They are moved to the outdoor growing compound in early summer.
Length of Active Growth Phase: 2 months
Hardening Phase: During mid to late summer, seedlings should be moved to the outdoor nursery to undergo hardening until late fall.
Length of Hardening Phase: 3 months
Harvesting, Storage and Shipping: Seedlings can be planted in the fall or overwintered in the nursery using Microfoam sheets and planted the following spring.
Length of Storage: 5 months
References: Hitchcock CL, Cronquist A, Ownbey M, Thompson JW. 1971. Flora of the Pacific Northwest. Part 5 Compositae. Seattle (WA): University of Washington Press.

Citation:

Luna, Tara; Dedekam, Sara. 2005. Propagation protocol for production of Container (plug) Erigeron speciosus (Lindl.) DC. plants 116 ml (7.0 cu. in); USDI NPS - Glacier National Park West Glacier, Montana. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/07/03). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.