Carried by 9 nurseries
View Availability at NurseryData provided by the participants of the Consortium of California Herbaria
View additional distribution information on the Jepson eflora
Del Norte County Iris is a perennial herb that is native to southern Oregon, and California along the north coast and Klamath Ranges in Del Norte County, California. It is a very small iris. It tends to grow in slopes, at elevations from 3300-4600 feet. The leaves are dense and evergreen, up to 20 cm. The flower can vary between a deep golden yellow with darker veins and a deep purple with lighter veins. The flower stems are about 12 cm and usually bear 1-2 flowers in spring. It spreads by rhizomes like other irises. Commonly sold in nurseries, often as hybrid Varieties: 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.
Perennial herb, Geophyte
5 - 8 in Tall
Evergreen
None
Purple, Yellow
Spring
Groundcover, Deer resistant
Partial Shade
Low
Max 1x / month once established
Moderate
Tolerates cold to 20° F
Fast
Neutral or slightly acidic, good drainage.
Soil PH: 5.0 - 7.0
It will reseed itself, but if other irises are in the area you may get unpredictable hybrids. To maintain a pure type, use cuttings from the rhizome, preferably in October. For propagating by seed: No treatment. Sow in early fall outdoors.
4*, 5*, 6*, 7*, 8, 9, 14*, 15, 16, 17, 18*, 19*, 20*, 21*, 22*, 23*, 24
Slopes with well drained soil in Ponderosa Pine forest
Yellow Pine Forest
Rushes (Juncus spp.), spikerush (Eleocharis spp.), sedges (Carex spp.), Red Columbine (Aquilegia formosa), California Grape (Vitis californica), Wild Rose (Rosa californica), ferns, lillies