Asteraceae (Erigeron)

Protocol Information for:

Label_title:
Erigeron (speciosus)

Family Names:

Family Scientific Name:
Asteraceae

Family Common Name:
Sunflower family

Scientific Names:

Genus:
Erigeron

Species:
speciosus

Scientific Classification:

Scientific SubSpecies:

Species Authority:
(Lindl.) DC.

Scientific SubAuthority:

Authors:

Common Synonym:

Genus:

Species:

Synonym Classification:

Synonym SubSpecies:

Species Authority:

Synonym SubAuthority:

Other Information:

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).

Known Invasiveness:

Propagation Goal:
plants

Propagation Method:
seed

Product Type:
Container (plug)

Stock Type:
116 ml (7.0 cu. in)

Grow Time:
5 Months

Target Specifications:
Firm root plug with multiple true leaves.

Propagation 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.

Propagation Processing/Propagule Characteristics:
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 Propagule 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

Guidelines for Outplanting / Performance on Typical Sites:

Other Comments:

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 2024/05/05). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.

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