Approximately 120 – 140 seeds.

At a Glance: Oregon iris is a clumped 12-15 in (40 cm) perennial species with showy blue to purple flowers. It grows well in open areas like meadows, fields, pastures, and in open woodlands.

Leaves: The leaves on this species are long, narrow, and grass-like.

Flowers: The showy blue to purple, often lavender flowers bloom in mid to late spring.

Growing Conditions:

Sun/Shade Tolerance Hydrology Elevation Range
Full sun > 80%
Mostly sunny 60%-80%
Low elevation
Mid elevation


Photo by Northwest Meadowscapes.

MacKinnon, A., Pojar, J., & Alaback, P. B. (1994). Plants of the Pacific Northwest coast: Washington, Oregon, British Columbia & Alaska. Richmond, Wash: Lone Pine Publishing.