Iridaceae (Iris)

Protocol Information for:

Label_title:
Iris (douglasiana)

Family Names:

Family Scientific Name:
Iridaceae

Family Common Name:
iris

Scientific Names:

Genus:
Iris

Species:
douglasiana

Scientific Classification:

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Other Information:

Common Name:
Douglas iris

Species Code:
IRDO

Ecotype:
typical to lower elevations; costal grassland areas

General Distribution:
Oregon and California

Known Invasiveness:

Propagation Goal:
plants

Propagation Method:
seed

Product Type:
Container (plug)

Stock Type:

Grow Time:
Weeks

Target Specifications:
Well-developed crowns, roots and rhizomes filling soil profile in container.

Propagation Collection:

Propagation Processing/Propagule Characteristics:

Pre-Planting Propagule 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.

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References:

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 2025/07/16). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.

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