Polemonium, Jacob's Ladder 'White Ghost'

Polemoniumcaeruleum

Family
Polemoniaceae (po-le-moh-nee-AY-see-ee)
Genus
Polemonium (po-le-MOH-nee-um)
Species
caeruleum (see-ROO-lee-um)
Synonym
Sun Exposure
Light Shade
Partial to Full Shade
Full Shade
Foliage
Herbaceous
Good Fall Color
Height
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
24-36 in. (60-90 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)
Bloom Color
Dark Blue
Medium Purple
White/Near White
Bloom Time
Mid Summer
Other Details
Category
Perennials
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Burgundy/Maroon
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
Patent Information
Propagation Methods
By dividing the rootball
From seed; sow indoors before last frost
From seed; direct sow after last frost
Seed Collecting
Bag seedheads to capture ripening seed
Wear gloves to protect hands when handling seeds
Properly cleaned, seed can be successfully stored
Regional

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Gardener's Notes:

0
positive
0
neutral
0
negative
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