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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.

 
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Penstemon (strictus)

Carol and Jerry Baskin
Professors
University of Kentucky
University of Kentucky
Lexington, Kentucky 40506-0225
seedlings.uidaho.com
Family Scientific Name: Scrophulariaceae
Family Common Name: Figwort family
Scientific Name: Penstemon strictus Benth.
Common Name: Rocky mountain penstemon
Species Code: PENSTR
General Distribution: P. strictus is found from Wyoming to New Mexico and east to Nevada and Arizona.
Propagation Goal: plants
Propagation Method: seed
ProductType: Container (plug)
Time To Grow: 0
Propagule Processing: Seed dormancy is physiological dormancy.
Pre-Planting Treatments: Seeds are placed in cold stratification.
Germination occurs at 15 C.
References: Allen, P. S. and Meyer, S. E. (1990). Temperature requirements for seed germination of three Penstemon species. HortScience 25, 191-193.
Table 10.28 In: Baskin, C.J. and Baskin, J.M. Seeds: Ecology, Biogeography and Evolution in Dormancy and Germination, Academic Press, 1998. Chapter 10: A Geographical Perspective on Germination Ecology: Temperate and Arctic Zones, pages 331 to 458.

Citation:

Baskin, Jerry M.; Baskin, Carol C.. 2002. Propagation protocol for production of Container (plug) Penstemon strictus Benth. plants University of Kentucky Lexington, Kentucky. 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.