Species Iris, Douglas Iris, Mountain Iris, Pacific Coast Iris

Irisdouglasiana

Family
Iridaceae (eye-rid-AY-see-ee)
Genus
Iris (EYE-ris)
Species
douglasiana (dug-lus-ee-AN-uh)
Synonym
Iris beecheyana
Iris watsoniana
Limniris douglasiana
Spacing
12-18 in. (30-45 cm)
Hardiness
24-36 in. (60-90 cm)
Sun Exposure
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
Danger
Sun to Partial Shade
Bloom Color
Parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction
Foliage
Medium Blue
Blue-Violet
Lavender
Medium Purple
Class
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Bloom Time
Other Details
Other details
Propagation Methods
Evergreen
Seed Collecting
Soil pH requirements
By dividing rhizomes, tubers, corms or bulbs (including offsets)
Patent Information
Awards (if applicable)
Foliage Color
Bloom Characteristics
Perennials
Water Requirements
Where to Grow
Regional

This plant is said to grow outdoors in the following regions:

Alameda, California

Aptos, California

Auburn, California

Crestline, California

Day Valley, California

Fremont, California

Los Altos, California

Los Angeles, California

Montara, California

Mountain View, California

Rio del Mar, California

San Francisco, California

San Jose, California

Saratoga, California

Seaside, California

Sebastopol, California

MOUNT HOOD PARKDALE, Oregon

Portland, Oregon

Chandler, Texas

Seattle, Washington

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Gardener's Notes:

3
positives
2
neutrals
0
negative
Sort By:
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V
(Zone 8a) | April 2024 | neutral

This is a Pacific coast native. But it has made it a whole year in E TX. Blooms are variable.

About Douglas Iris (Iris do...Read More

D
D
Los Angeles, CA (Zone 10a) | June 2013 | positive

Striking color of Pacific Coast Iris - check my photos. Apparently, this is an unregistered color, or the vendors did not know the name. ...Read More

C
(Zone 8a) | June 2005 | positive

Some years ago, I grew a number of irises from a packet of mixed iris seed. Although some of them turned out to be from the iris family r...Read More

C
Santa Cruz Mountains, CA (Zone 9a) | April 2005 | positive

This beautiful little iris that is native to our area is cream colored or lavender in the wild. It has been very successfully hybridized ...Read More

E
Toadsuck, TX (Zone 7a) | August 2001 | neutral

This beardless hardy Iris from California
has slender, coarse, deep green leaves
that are normally evergreen and spread out...Read More

Featured
Scentless Plant Bug
(Niesthrea louisianica)
Australasian Swamphen
(Porphyrio melanotus)
Featured
Scentless Plant Bug
(Niesthrea louisianica)
Australasian Swamphen
(Porphyrio melanotus)