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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

Iris (douglasiana)

Amy Bartow
Seed and Plant Production Manager
USDA NRCS - Corvallis Plant Materials Center
3415 NE Granger Ave
Corvallis, Oregon 97330
(541) 757-4812 ext 103
(541) 757-4733 (fax)
amy.bartow@or.usda.gov
http://plant-materials.nrcs.usda.gov/orpmc
Family Scientific Name: Iridaceae
Family Common Name: iris
Scientific Name: Iris douglasiana
Common Name: Douglas iris
Species Code: IRDO
Ecotype: typical to lower elevations; costal grassland areas
General Distribution: Oregon and California
Propagation Goal: plants
Propagation Method: seed
ProductType: Container (plug)
Time To Grow: Weeks
Target Specifications: Well-developed crowns, roots and rhizomes filling soil profile in container.
Pre-Planting Treatments: We (in Corvallis Oregon) had our best success, although still relatively low, with outdoor stratification or 80 days of cool/moist stratification in our cooler (38F). The seeds may need to be briefly frozen in order to completely break dormancy.

Citation:

2015. Propagation protocol for production of Container (plug) Iris douglasiana plants USDA NRCS - Corvallis Plant Materials Center Corvallis, Oregon. 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.