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Del Norte County Iris
Iris innominata
  
About Del Norte County Iris (Iris innominata) 7 Nurseries Carry This Plant 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.
Plant Description
Plant Type
Plant Type
Perennial herb

Size
Size
4.7 - 8.4 in tall

Dormancy
Dormancy
Evergreen

Fragrance
Fragrance
None

Flower Color
Flower Color
Purple, Yellow

Flowering Season
Flowering Season
Spring

Landscaping Information
Sun
Sun
Part Shade

Moisture
Moisture
Low

Summer Irrigation
Summer Irrigation
Max 1x / month once established

Nurseries
Nurseries

Ease of Care
Ease of Care
Moderately Easy

Cold Tolerance
Cold Tolerance
Tolerates cold to 20° F

Soil Drainage
Soil Drainage
Fast

Soil Description
Soil Description
Neutral or slightly acidic, good drainage. Soil PH: 5.0 - 7.0

Common uses
Common uses
Groundcovers, Deer Resistant

Companion Plants
Companion Plants

Propagation
Propagation?
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.

Sunset Zones
Sunset Zones?
4*, 5*, 6*, 7*, 8, 9, 14*, 15, 16, 17, 18*, 19*, 20*, 21*, 22*, 23*, 24

Natural Setting
Site Type
Site Type
Slopes with well drained soil in Ponderosa Pine forest

Climate
Climate
Annual Precipitation: 67.2" - 155.6", Summer Precipitation: 2.27" - 5.87", Coldest Month: 36.0" - 45.5", Hottest Month: 54.1" - 68.3", Humidity: 0.27" - 16.91", Elevation: 120" - 6643"


Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora


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