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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

Oxytropis (lambertii)

Matthew Utley
Conservation Horticulturist
Red Butte Garden
300 Wakara Way
Salt Lake City, Utah 84108
801-587-9951
801-585-0516 (fax)
Matthew.Utley@redbutte.utah.edu
http://www.redbuttegarden.org/

Family Scientific Name: Fabaceae
Family Common Name: Pea Family
Scientific Name: Oxytropis lambertii Pursh
Common Name: Purple locoweed
Species Code: OXLA3
Ecotype: South end Duchesne Co. Utah
Propagation Goal: plants
Propagation Method: seed
ProductType: Container (plug)
Time To Grow: 3 Months
Target Specifications: Spring plant out.
Propagule Collection: Hand collected seed pods. Cleaned seed stored dry for 3 weeks then at 2-4 C in seed bank until use (3 months).
Pre-Planting Treatments: Seeds were tested for germination with and without scarification and 4 weeks Cold stratification at 2-4 C. Treatment A-With scarification, B-without scarification, C-with scarification and 4 weeks cold strat, D-Without scarification and with 4 weeks cold strat.
After two weeks Treatment A had 95% germ, Treatment B had 0%, treatment C had 100%, treatment D had 5%.
Results: Scarification was neccesary whether or not cold strat was used.
Growing Area Preparation/
Annual Practices for Perennial Crops:
Seeds were moved to 20D/10N following pretreatment. Seeds were held with 12 hrs light durring all stages of germ trial.
Establishment Phase: Germlings were moved to Rootrainers containing soilless medium following germination.
Length of Establishment Phase: 3 months
Other Comments: Scarification was achieved by knicking the the seed coat with a razorblade on the side opposite the embryo.
Plants failed to thrive in the greenhouse.

Citation:

Utley, Matthew C.. 2006. Propagation protocol for production of Container (plug) Oxytropis lambertii Pursh plants Red Butte Garden Salt Lake City, Utah. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/07/02). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.