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Category
Alpines and Rock Gardens
Groundcovers
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Sun Exposure
Sun to Partial Shade
Light Shade
Foliage
Herbaceous
Foliage Color
Height
18-24 in. (45-60 cm)
Spacing
12-15 in. (30-38 cm)
Hardiness
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)
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Where to Grow
Grow outdoors year-round in hardiness zone
Can be grown as an annual
Danger
N/A
Bloom Color
Dark Purple/Black
Maroon/Burgundy
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Bloom Time
Mid Spring
Late Spring/Early Summer
Other details
Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
Patent Information
Patented
Propagation Methods
By dividing the rootball
Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
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