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Category
Alpines and Rock Gardens
Bulbs
Groundcovers
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Sun Exposure
Light Shade
Foliage
Grown for foliage
Herbaceous
Smooth
Foliage Color
Chartreuse/Yellow
Height
6-12 in. (15-30 cm)
Spacing
6-9 in. (15-22 cm)
9-12 in. (22-30 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)
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Where to Grow
Can be grown as an annual
Danger
Parts of plant are poisonous if ingested
Bloom Color
Dark Blue
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Flowers are fragrant
Bloom Size
Bloom Time
Mid Spring
Late Spring/Early Summer
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Patented
Propagation Methods
By dividing rhizomes, tubers, corms or bulbs (including offsets)
Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
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