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Category
Perennials
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Herbaceous
Foliage Color
Height
under 6 in. (15 cm)
Spacing
3-6 in. (7-15 cm)
6-9 in. (15-22 cm)
Hardiness
USDA Zone 2b: to -42.7 °C (-45 °F)
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)
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Where to Grow
Danger
N/A
Bloom Color
Light Blue
Dark Blue
Blue-Violet
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
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors
Direct sow as soon as the ground can be worked
From seed; sow indoors before last frost
From seed; direct sow after last frost
Seed Collecting
Properly cleaned, seed can be successfully stored
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