General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Mesic
Maximum recommended zone: Zone 3
Plant Height: 12-24 inches
Plant Spread: 12 inches
Flowers: Showy
Flower Color: Lavender
Other: Violet
Flower Time: Summer
Late summer or early fall
Uses: Will Naturalize
Suitable as Annual
Wildlife Attractant: Bees
Resistances: Deer Resistant
Pollinators: Moths and Butterflies

Common names
  • Closed Gentian
  • Gall Flower
  • Sampson's Snakeroot
  • Barrel Gentian
  • Blind Gentian
  • Cloistered Heart
  • Closed Bottle Gentian
  • Bottle Gentian

  • Posted by mom2goldens (Carmel, IN - Zone 5b) on Sep 29, 2011 5:32 PM concerning plant:
    In zone 5, this plant blooms later in the season (late summer) and adds a beautiful blue color to the garden. It seems to grow fairly slowly, and does not spread aggressively. Does not seem to be picky about soil conditions or need frequent watering. The shape of the flower really is a unique look among other flowers blooming at the same time.
Plant Events from our members
chelle On October 1, 2014 Transplanted
Mum hugel bed W of hydrangea.
MrsBinWY On December 21, 2019 Seeds sown
WS 16 seeds from Prairie Moon C(60) in milk jug (put outside 12-26-19).
MrsBinWY On February 5, 2017 Seeds sown
per TC: 2-4 weeks @ 64-71 degrees; 4-6 weeks @ 24-39 degrees; germinate @ 41-53 degrees; last of seeds from christine00; 4-2-17 put seeds in milk jug & put in cool part of living room
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