Species Iris, Sand Iris
Irishumilis

Synonym:Iris dahurica

Synonym:Iris flavissima

Synonym:Iris rupestris

Synonym:Joniris humilis

Height

Spacing
under 6 in. (15 cm)

Hardiness
24-36 in. (60-90 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
Sun to Partial Shade

Bloom Color

Foliage
Bright Yellow

Other details

Propagation Methods
Herbaceous
Smooth

Seed Collecting

Soil pH requirements
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost

Patent Information

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

Bloom Time

Awards (if applicable)

Foliage Color

Bloom Characteristics
Perennials

Water Requirements

Where to Grow