Category:
Perennials
 

Height:
6-12 in. (15-30 cm)
12-18 in. (30-45 cm)
 

Spacing:
12-15 in. (30-38 cm)
 

Hardiness:
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
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)
 

Sun Exposure:
Sun to Partial Shade
 

Danger:
Unknown - Tell us
 

Bloom Color:
Blue-Violet
 

Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
 

Foliage:
Herbaceous
 

Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater
 

Soil pH requirements:
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
 

Propagation Methods:
By dividing the rootball
From seed; direct sow outdoors in fall
From seed; sow indoors before last frost
From seed; direct sow after last frost
 

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored