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PlantFiles: Species Iris
Iris delavayi

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Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Species: delavayi (del-uh-VAY-ee) (Info)

» View all varieties of Iris

4 members have or want this plant for trade.

Class:
Species

Height:
18-24 in. (45-60 cm)

Spacing:
18-24 in. (45-60 cm)

Hardiness:
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
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)

Sun Exposure:
Full Sun

Danger:
Parts of plant are poisonous if ingested

Bloom Color:
Dark Blue
Blue-Violet

Bloom Time:
Late Midseason (MLa)

Foliage:
Herbaceous
Smooth-Textured

Other details:
Average Water Needs; Water regularly; do not overwater
Flowers are good for cutting

Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)

Patent Information:
Non-patented

Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors

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

Awards (if applicable):
Unknown - Tell us

Click thumbnail
to view:

By Todd_Boland
Thumbnail #1 of Iris delavayi by Todd_Boland

Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive Todd_Boland On Jul 1, 2006, Todd_Boland from St. John's, NL (Zone 5b) wrote:

This species iris belong to the 40-chromosome Siberian group along with I. chrysographes, I. clarkei, I. forrestii, I bulleyana and I. wilsonii. Very rich, velvety blue flowers.

Regional...

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

, Newfoundland and Labrador



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