Dutch Iris
Irisx hollandica 'Hildegarde'

Height

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

Hardiness
6-9 in. (15-22 cm)
9-12 in. (22-30 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)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)

Danger
Full Sun
Sun to Partial Shade

Bloom Color

Foliage
Medium Purple
Dark Purple/Black
Maroon/Burgundy
Brown/Bronze

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; germinate in a damp paper towel

Patent Information

Class
Allow pods to dry on plant; break open to collect seeds
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Bloom Time

Awards (if applicable)

Foliage Color

Bloom Characteristics

Water Requirements

Where to Grow