A unique plant with striking blue, closed flowers whose shape give this gentian its common name. Because the flowers are closed and difficult to access, large bumblebees are one of the few insect to visit the flowers. Generally does not reseed as seeds are very small and difficult to establish.

Light: Full Sun, Part Sun/Shade

Soil Moisture: Wet, Wet Mesic, Mesic

Soil Type: Loam, Humus

Height: 1'-2'

Bloom Color: Blue

Bloom Time: Sep-Oct

Root Type: Taproot

Notable Wildlife Interactions: Flowers attract bumblebees, which are one of the few insects that can access the inside of the flower. Bitter foliage deters herbivores, but new growth is occasionally browsed by deer.