Del Norte County iris is a small rhizomatous species from the north coast of California and southern Oregon, with evergreen leaves and deep golden yellow spring flowers. It does best with cool, wet winters, warm dry summers and very good drainage.
Family
Iridaceae (Iris family)
Grows as
Bulb
Light
Part shade
Water
Water well in the cool wet season and keep dry through the warm summer dormancy.
Soil
Neutral to slightly acidic, gritty, well-drained soil.
Temperature
Hardy in cool temperate climates; tolerates cold winters but resents hot, humid summers.
How easy
Moderate
Native range
SW. Oregon & NW. California
Climate
temperate
About
Iris innominata, the Del Norte County iris, is a species of iris native to southern Oregon, and California along the north coast and Klamath Ranges in Del Norte County, California.
The leaves are dense and evergreen, up to 20 cm. The flower is typically deep golden yellow with darker veins, although colors may vary. The flower stems are about 12 cm and usually bear 1–2 flowers in spring.
How to grow it
Iris innominata, used in gardens, does best in locations with cool, wet winters and warm, dry summers, in neutral or slightly acidic soil, with good drainage, and sun or partial shade.
It is often used for hybridizing with other Iris species. Many plants sold under this name in nurseries are hybrids.
Text excerpted from the Wikipedia article Iris innominata by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.