Heavenly Habit Jacob's Ladder
Polemonium boreale
poh-lee-MOH-nee-um bor-ee-AL-ee
Perennials: Flower
Jacob’s Ladder
Zone
3: -40° to -30°
Min. Temp
Hardy: 28°
Forms a low, bushy mound of ferny green leaves, bearing loads of violet-blue, starry flowers. Blooms appear over a long season. Clip back by half in midsummer to rejuvenate, if necessary.
Appearance
Summer Foliage
Variegated
Fall Foliage
Green
Flower Color
Blue
Blooming Time
Late Spring - Late Spring
Habit
Upright
Height
6–12 in
Spread
12–18 in
Form
Bell
Characteristics
Type
Cultivar
Safety
Non-toxic
Growth Rate
Moderate
Tolerance/Resistance
Cold Hardy
Attracts
Heavenly Habit Jacob's Ladder
Uses/Placement
Woodland
Optimal Growing Conditions
Sun Exposure
Full Sun - Part Shade
Soil Texture
Loamy
Soil Drainage
Moderately well-drained
Soil Moisture
Average to Moist
Soil PH
Slightly Acidic: 6.0-6.5
PH Tolerance
Prefers slightly acidic soil
PH Correction
Low pH may cause nutrient toxicity
Soil Amendment(s)
Organic Matter Recommended
Fertilizer
Organic Feeding Recommended
Fertilizer Formula
Balanced Fertilizer
Fertilizer Timing
Early Spring
Micronutrients
Trace Minerals Beneficial
Care
Care Level
Moderate
Behavior and Propagation
Spreading
Moderate Spreader
Propagation Method
Benefits from Pollinators
Propagation Licensing
Trademarked cultivar
Division Timing
Spring or Fall Division