General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Partial or Dappled Shade
Water Preferences: Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Minimum cold hardiness: Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Plant Height: 10 to 20 inches
Leaves: Deciduous
Fruit: Other: Small spherical yellowish 3-sectioned capsule
Flowers: Showy
Flower Color: Blue
Purple
White
Bloom Size: Under 1"
Flower Time: Summer
Underground structures: Rhizome
Uses: Will Naturalize
Wildlife Attractant: Bees
Pollinators: Bumblebees
Bees
Various insects

Image
Common names
  • Tall Jacob's-Ladder
Botanical names
  • Accepted: Polemonium acutiflorum
  • Synonym: Polemonium caeruleum subsp. villosum
  • Synonym: Polemonium caeruleum var. acutiflorum

Photo Gallery

Date: 2012-06-05
Credit NPS Jacob W. Frank

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