RNGR.net is sponsored by the USDA Forest Service and Southern Regional Extension Forestry and is a colloborative effort between these two agencies.

U.S. Department of Agriculture USDA Forest Service Southern Regional Extension Forestry Southern Regional Extension Forestry

Skip to content. | Skip to navigation

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

Penstemon (virgatus)

Lindsay Springer
Lead Biological Science Technician - Greenhouse Manager
USDI NPS - Rocky Mountain National Park
1000 Highway 36
Estes Park, Colorado 80517-8397
(970) 586-1252
(970) 589-1392 (fax)
Lindsay_Springer@nps.gov
http://www.ggnpa.org
Family Scientific Name: Scrophulariaceae
Scientific Name: Penstemon virgatus
Common Name: Penstemon
Ecotype: Colorado, Moraine Park (98-044s, 98-122s), Hollowell Park (98-085s)
Propagation Goal: seeds
Propagation Method: seed
ProductType: Propagules (seeds, cuttings, poles, etc.)
Time To Grow: 0
Propagule Collection: Seed cleaning technique: Seeds removed from seed heads by crushing seeds head or using tweezers. Use of screens helpful for separating seed from miscellaneous plant material.

Moraine Park (98-044s, 98-122s) collected on 10/10/98; Hollowell Park (98-085s) collected on 9/12/98.
Pre-Planting Treatments: Seed treatments: None, 30 day cold moist treatment.
Growing Area Preparation/
Annual Practices for Perennial Crops:		 Propagation Environment: Greenhouse, 65-70§F day/55§F night. Propagated on orange heat pad (set to 70§F) under tent with misters set 8 am-8 pm, with 10 sec/15 min watering intervals. One week after germination, seedlings were moved to mister area without tent.

Germination media: Fafard Germinating Mix (superfine).

Growing media: Fafard Growing Mix 2.
Establishment Phase: Sowing/planting technique: Sown in 36 pk, 3-5 seeds/slot.

Time to germination: 12-15 days.

Establishment Phase: Germination slow and uneven.

Time to potting: 1 to 1-1/2 months.

Moraine Park (98-044s, 98-122s) sowed 12/4/98; Hollowell Park (98-085s) sowed on 11/16/98.
Harvesting, Storage and Shipping: Seed storage condition: Seed stored in the greenhouse.
Other Comments: Comments: 98-044s was cold, moist treated for one month prior to planting while 98-122s was stored in the refrigerator. Hollowell was stored in greenhouse so cold treatment may or may not be necessary.

Citation:

Butler, Jennifer; Frieswyk, Christin. 2001. Propagation protocol for production of Propagules (seeds, cuttings, poles, etc.) Penstemon virgatus seeds USDI NPS - Rocky Mountain National Park Estes Park, Colorado. 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.