Species Iris, Black Iris, Sino-Siberian Iris
Irischrysographes

Synonym:Iris dykesii

Synonym:Limniris chrysographes

Synonym:Limniris dykesii

Height

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

Hardiness
15-18 in. (38-45 cm)

Sun Exposure
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)

Danger
Full Sun

Bloom Color
Parts of plant are poisonous if ingested

Foliage
Medium Purple
Dark Purple/Black

Other details

Propagation Methods
Herbaceous

Seed Collecting

Soil pH requirements
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

Patent Information

Class
Allow pods to dry on plant; break open to collect seeds

Bloom Time

Awards (if applicable)

Foliage Color

Bloom Characteristics

Water Requirements

Where to Grow