Species Iris, Sino-Siberian Iris, Yellow Iris
Irisforrestii

Synonym:Limniris forrestii

Height

Spacing
12-18 in. (30-45 cm)

Hardiness
15-18 in. (38-45 cm)
18-24 in. (45-60 cm)

Sun Exposure
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
Sun to Partial Shade

Bloom Color
Parts of plant are poisonous if ingested

Foliage
Pale Yellow
Bright Yellow

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

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