Oxyria (digyna)

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:	Polygonaceae
Family Common Name:	Buckwheat family
Scientific Name:	Oxyria digyna ( L.) Hill
Common Name:	Mountain Sorrel
Species Code:	OXYDIG
Ecotype:	Subalpine meadows, growing in rock outcroppings, Logan Pass, Glacier National Park, Glacier Co., MT., 2032m elevation.
General Distribution:	O. digynia is a circumboreal species that occurs in the subalpine and alpine in moist sharply drained sites; Alaska through the Cascades to California, east to Labrador, New Hampshire, and south through the Rockies to New Mexico, also in Eurasia.
Propagation Goal:	plants
Propagation Method:	seed
ProductType:	Container (plug)
Stock Type:	160 ml conetainers
Time To Grow:	6 Months
Target Specifications:	Stock Type: Container seedlings<br> Height: 6 to 10 true leaves, 7 cm<br> Caliper: n/a<br> Root System: firm plug in conetainer.
Propagule Collection:	Seeds are collected in late August when achenes turn reddish tan and are easily hand stripped from the inflorescence. Seeds are air dried in paper bags in the drying shed.
Propagule Processing:	Seeds are hand cleaned at the nursery. Seed longevity is unknown. Seed dormancy is classified as nondormant. Seeds/Kg: 2,870,000 /kg approx. % Purity: 100% % Germination: 70 to 85%
Pre-Planting Treatments:	Stratification is not necessary. Germination occurs in the outdoor nursery at 21C. Seed must be surface sown. Germination is greater in light (surface sown) than dark (covered with mulch).
Growing Area Preparation/ Annual Practices for Perennial Crops:	Greenhouse and outdoor nursery growing facility. Sowing Method: Direct Seeding. Seeds are surface sown. Growing medium used is 70% 6:1:1 milled sphagnum peat, perlite, and vermiculite and 30% sand 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 conetainer. Greenhouse temperatures are maintained at 21 to 25C during the day and 16 to 18C at night. Seedlings are hand watered and remain in greenhouse until mid May. Seedlings are then moved to outdoor nursery for the remainder of the growing season. 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 germination. Initial germination appeared uniform. 4 to 6 true leaves were evident 3 weeks after germination.
Length of Establishment Phase:	4 weeks
Active Growth Phase:	Root and shoot development occurs rapidly following germination Plants were fertilized with 13-13-13 liquid NPK fertilizer at 100 ppm during the growing season. Conetainers can be outplanted in July.
Length of Active Growth Phase:	16 weeks
Hardening Phase:	Irrigation is gradually reduced in September and October. Plants are leached with clear water once before winterization.
Length of Hardening Phase:	4 weeks
Harvesting, Storage and Shipping:	Total Time To Harvest:6 months Harvest Date: August Storage Conditions: Overwinter in outdoor nursery under insulating foam coverand snow.
Length of Storage:	5 months
Other Comments:	Divisions of established nursery stock could be tried.
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. Growing Colorado Plants from Seed, A State of the Art. Vol. 3; Forbs, U.S. Fish and Wildlife Service, NTIS General Technical Report, 1982. Seed Germination Theory and Practice, Deno, Norman, Penn State University, 1993. Glacier National Park Native Plant Nursery Propagation Records, unpublished. 1999 Revegetation Monitoring Report, Glacier National Park, Asebrook, J. and Brenneman, B., unpublished.

Citation:

Wick, Dale; Hosokawa, Joy; Johnson, Kathy. 2008. Propagation protocol for production of Container (plug) Oxyria digyna ( L.) Hill plants 160 ml conetainers; USDI NPS - Glacier National Park West Glacier, Montana. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/12/26). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.