Polemonium, White Jacob's Ladder, Jacob's Ladder 'Album'

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
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
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
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

This plant is said to grow outdoors in the following regions:

Seward, Alaska

South China, Maine

Red Wing, Minnesota

Salem, Oregon

Bellingham, Washington

Featured Videos

Gardener's Notes:

0
positive
0
neutral
0
negative
Sort By:
Sort By:
Featured
Grey Agriophara Moth
(Agriophara cinerosa)
American Goldfinch
(Spinus tristis)
Featured
Grey Agriophara Moth
(Agriophara cinerosa)
American Goldfinch
(Spinus tristis)