Douglasia (montana)

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:	Primulaceae
Family Common Name:	Primrose family
Scientific Name:	Douglasia montana Gray
Common Synonym:	Gregoria montana (Gray) House
Common Name:	Rocky Mountain Dwarf Primrose
Species Code:	DOUMON
Ecotype:	Festuca idahoensis grassland, Glacier National Park, Glacier Co., MT.,1585m elevation.
General Distribution:	D. montana occurs from foothills to open ridges and scree slopes, from extreme southeastern B.C. to Idaho, Montana, and northern Wyoming.
Propagation Goal:	plants
Propagation Method:	seed
ProductType:	Container (plug)
Stock Type:	160 ml conetainers
Time To Grow:	2 Years
Target Specifications:	Stock Type: Container seedling<br> Height: Multiple leaves in a tight cushion, 2cm<br> Caliper: n/a<br> Root System: firm plug in conetainer.
Propagule Collection:	Collect mature capsules when they begin to split and turn tan in color in July and August. Seeds are brown at maturity. Seeds are collected in paper bags and kept in a well ventilated drying shed prior to cleaning.
Propagule Processing:	Seeds are hand cleaned at the nursery. Seeds/Kg: unknown Seed longevity is unknown. % Purity: 100% % Germination: N/A
Pre-Planting Treatments:	5 month outdoor stratification. Germination did not occur until the second spring; 1.5 years after sowing. Germination occurred under fluctuating spring temperatures.
Growing Area Preparation/ Annual Practices for Perennial Crops:	Outdoor nursery growing facility. Sowing Method: Direct Seeding. Seeds are covered with medium. Growing medium used is 6:1:1 milled spaghnum 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. Seedlings germinate in spring under fluctuating outdoor temperatures and are grown under full sun exposure. Seedlings are irrigated with Rainbird automatic irrigation system in early morning until containers are thoroughly leached. Average growing season of nursery is from late April after snowmelt until October 15th.
Establishment Phase:	Medium is kept slightly moist during after-ripening period. 1.5 years, alternating cycles of cold stratification for 5 months/ warm stratification for 5 months/ cold stratification for 5 months and above 21C induced germination.
Length of Establishment Phase:	6 weeks
Active Growth Phase:	Root development occurs rapidly following germination. 4 to 6 true leaves were evident in a tight rosette 6 weeks after germination. Plants were uppotted into a sharply drained mix in 800 ml pots. Plants were fertilized with 13-13-13 liquid NPK fertilizer at 100 ppm during the growing season.
Length of Active Growth Phase:	12 weeks
Hardening Phase:	Irrigation is gradually reduced in September and October. Plants are flushed with clear water before winterization.
Length of Hardening Phase:	4 weeks
Harvesting, Storage and Shipping:	Total Time To Harvest: 2 years Harvest Date: September of 2nd year. Storage Conditions: Overwinter in outdoor nursery under insulating foam cover and snow.
Length of Storage:	5 months
Other Comments:	Vegetative Propagation Method: Pre-rooting Type of Cutting: Summer softwood stem-tip cutting. Collecting Date: July Cutting Treatments: Cuttings were 1 to 2 cm in length and were taken in late July after flowering. Cuttings were treated with 2500 ppm Hormex rooting powder and struck in sand media under mist with bottom heat for 8 weeks. Cuttings produced well branched roots 1 to 1.5 cm long along the stem where the rooting powder adhered. Cuttings can be overwintered in the propagation bed and uppotted the following spring. Rooting %: 60% Time to Transplant: 8 weeks Total Time To Harvest: 1.2 years from cuttings.
References:	Flora of the Pacific Northwest, Hitchcock and Cronquist, 7th edition, University of Washington Press, 1973. Seeding Rate Statistics for Native and Introduced Species, Hassell, Wendel, U.S.D.I. and U.S.D.A., April 1996. Seeds: Ecology, Biogeography, and Evolution of Dormancy and Germination, Baskin and Baskin, Academic Press, 1998. Seed Germination Theory and Practice, Deno, Norman, Penn State University, 1993. Glacier National Park Native Plant Nursery Propagation Records, unpublished.

Citation:

Luna, Tara; Wick, Dale; Hosokawa, Joy. 2008. Propagation protocol for production of Container (plug) Douglasia montana Gray plants 160 ml conetainers; USDI NPS - Glacier National Park West Glacier, Montana. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2025/04/20). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.