Partial Shade
Moderate watering
Frost Hardy
H5
RHS hardiness
-15°C
Minimum temperature
Expected size
Height | Spread | |
|---|---|---|
40cm | Max | 60cm |
20cm | Min | 50cm |
Flowering
spring
summer
autumn
winter
Oregon iris Overview
This is a deciduous beardless species. It will grow to about 30cm tall with dark green foliage which is stained pink at the base. The flowers will bloom from mid-spring into the summer. The blooms are about 9cm across and they are blue, lavender, yellow or white, and often have yellow and white markings on the falls.
Common problems with Oregon iris
How to propagate Oregon iris
Division
By division of rhizomes or offsets in late summer. Certain cultivars should be propagated by division only.
Rhizomes
Seed
Seed in autumn.
Other uses of Oregon iris
Grown for their distinctive and colourful flowers. Suitable for coastal conditions.