
Douglas Iris
(Iris douglasiana)
Native Plants A-Z
Douglas Iris
Iris douglasiana
KEY DETAILS
Plant Type
Evergreen perennial herb
Light
Full sun, part shade, deep shade
Soil
Prefers richer soils such as clay with organic matter. Tolerates serpentine soil.
Size
Forms fountain-like clumps 12-24” tall x 2-4’ wide
Bloom Time
Spring, winter
Sun Exposures per day
Shade: Less than 3 hours of direct sun
Part shade: 3-4 hours of direct sun
Part Sun: 5–6 hours of direct sun
Full Sun: Receives 6+ hours of direct sun