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PlantFiles: Tough-leaf Iris, Oregon Iris
Iris tenax

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Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Species: tenax (TEN-aks) (Info)

Synonym:Iris tenax subsp. tenax
Synonym:Iris tenax subsp. gormanii
Synonym:Iris tenax var. gormanii

» View all varieties of Iris

4 vendors have this plant for sale.

9 members have or want this plant for trade.

Class:
Species

Height:
under 6 in. (15 cm)
6-12 in. (15-30 cm)

Spacing:
9-12 in. (22-30 cm)
12-15 in. (30-38 cm)

Hardiness:
USDA Zone 7b: to -14.9 C (5 F)
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)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:
Sun to Partial Shade

Danger:
Parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction

Bloom Color:
Blue-Violet
Violet/Lavender
White/Near White

Bloom Time:
Early (E)
Early midseason (EM)

Foliage:
Herbaceous
Chartreuse/Yellow

Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:
Non-patented

Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; winter sow in vented containers, coldframe or unheated greenhouse

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds

Awards (if applicable):
Unknown - Tell us

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By buggycrazy
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By Strever
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By Strever
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There are a total of 12 photos.
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No details have been posted.

Regional...

This plant has been said to grow in the following regions:

Crescent City, California
Portland, Oregon (2 reports)
Salem, Oregon
Sequim, Washington
Woodinville, Washington



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