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PlantFiles: Tall Bearded Iris
Iris 'Obsidian'

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Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Cultivar: Obsidian
Hybridized by M. Smith; Year of Registration or Introduction: 2001

» View all varieties of Iris

5 members have or want this plant for trade.

Class:
Tall Bearded (TB)

Height:
24-36 in. (60-90 cm)

Spacing:
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)
18-24 in. (45-60 cm)

Hardiness:
USDA Zone 3a: to -39.9 C (-40 F)
USDA Zone 3b: to -37.2 C (-35 F)
USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
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 Purple/Black

Bloom Time:
Midseason (M)

Foliage:
Herbaceous

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)

Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Awards (if applicable):
Honorable Mention
Award of Merit

Click thumbnail
to view:

By rshadlow
Thumbnail #1 of Iris  by rshadlow

By TBGDN
Thumbnail #2 of Iris  by TBGDN

By NickysIris
Thumbnail #3 of Iris  by NickysIris

Profile:

1 positive
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive pajaritomt On Aug 24, 2009, pajaritomt from Los Alamos, NM (Zone 5a) wrote:

This iris bloomed the first year I had it in my garden, producing the darkest, most velvety, most alluring of the blacks I have so far, and I have quite a few. This may be my favorite black. Whereas, All Night Long is beautifully waxy, this one is beautifully velvety. Both are stunning.

Neutral Joan On Mar 25, 2006, Joan from Belfield, ND (Zone 4a) wrote:

American Iris Society Awards: Honorable Mention 2004; Award of Merit 2006

Regional...

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

Macy, Indiana
Cherryvale, Kansas
South Paris, Maine
Shepherd, Montana
Los Alamos, New Mexico



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