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: Strongly acid (5.1 – 5.5)
Moderately acid (5.6 – 6.0)
Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Minimum cold hardiness: Zone 4b -31.7 °C (-25 °F) to -28.9 °C (-20 °F)
Maximum recommended zone: Zone 7b
Plant Height: 3 - 4 inches
Plant Spread: 6 - 12 inches
Leaves: Semi-evergreen
Flowers: Showy
Flower Color: Blue
Bloom Size: 1"-2"
Flower Time: Late summer or early fall
Fall
Suitable Locations: Alpine Gardening
Propagation: Other methods: Division
Containers: Suitable in 1 gallon

Image
Common names
  • Gentian

Photo Gallery
Location: My garden in N E Pa. 
Date: 2018-09-20
4" tall plant with tiny double purple flowers.
Location: RHS Harlow Carr alpine house, Yorkshire
Date: 2018-10-10
Location: RHS Harlow Carr alpine house, Yorkshire
Date: 2018-10-10

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