Black Iris
Iris chrysographes

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Iris (EYE-ris) (Info)
Species: chrysographes (kris-oh-GRAF-ees) (Info)
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Class:

Species

Height:

18-24 in. (45-60 cm)

Spacing:

15-18 in. (38-45 cm)

Hardiness:

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)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Full Sun

Danger:

Parts of plant are poisonous if ingested

Bloom Color:

Purple

Dark Purple/Black

Bloom Time:

Late Midseason (MLa)

Foliage:

Herbaceous

Other details:

Average Water Needs; Water regularly; do not overwater

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

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):

Award of Merit

Regional

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

Los Angeles, California

Peoria, Illinois

Nicholasville, Kentucky

Cedar Springs, Michigan

Eveleth, Minnesota

Corning, Ohio

Sherwood, Oregon

Tangent, Oregon

Seattle, Washington

Sumas, Washington

Vader, Washington

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Gardeners' Notes:

1
positive
0
neutrals
0
negatives
RatingContent
Positive

On Jun 2, 2011, braun06 from Peoria Heights, IL (Zone 5b) wrote:

The flower is generally black for all intents and purposes. You notice it has some slight purple coloring within 10' but its very dark. From far it is black and as a cut flower indoors it will be black. It has no fragrance for me.