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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

Epilobium (canum)

Cheryl Decker
Nursery Manager
USDI NPS - Zion National Park
SR 9
Springdale, Utah 84767-1099
http://www.ggnpa.org

Family Scientific Name: Onagraceae
Family Common Name: Evening Primrose Family
Scientific Name: Epilobium canum (Greene) latifolium (Hook.) Raven
Common Synonym: Zauschneria latifolia (Hook.) Greene
Common Name: Hummingbird trumpet
Species Code: EPICAN
Ecotype: Zion National Park, Utah
General Distribution: Epilobium canum ssp. latifolium is found from Oregon and California south through the Great Basin States to Arizona and New Mexico.
Propagation Goal: plants
Propagation Method: seed
ProductType: Container (plug)
Stock Type: D 40 containers
Time To Grow: 1 Years
Target Specifications: Height: N/A<br> Caliper: N/A<br> Root System: Firm root plug in container.
Propagule Collection: Seeds are hand collected from sites within the Park when fruits have fully matured.
Propagule Processing: Seeds are stored in sealed containers under refrigeration between 40 and 60 F.
Pre-Planting Treatments: Seeds are naturally stratified outdoors during fall months.
Sowing Methods: Seeds are sown in Dyna flats with drainage holes containing a medium of 1.5 parts vermiculite, 1 part sterile sand, 1 part coarse turface, and 2 parts peat moss (v:v:v:v).
Trays are watered thoroughly after sowing and are not allowed to dry out completely during stratification and germination.
Growing Area Preparation/
Annual Practices for Perennial Crops:
Seedlings are grown in a shadehouse from March through October.
Establishment Phase: We transplant emergents at the cotyledon stage into D 40 pots containing the same media described for germination. It is important to transplant at the cotyledon stage as root deformation will occur if delayed beyond this stage of development. We sometimes incorporate 13:13:13 NPK Osmocote time release fertilizer into media.
Active Growth Phase: Seedlings are hand watered throughout the growing season after they are well established. Throughout the active growth phase, we irrigate when containers are nearly dry as a method of hardening the plants while they are being grown.

Citation:

Decker, Cheryl. 2003. Propagation protocol for production of Container (plug) Epilobium canum (Greene) plants D 40 containers; USDI NPS - Zion National Park Springdale, Utah. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/07/03). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.