Closed Bottle Gentian
Clusters of apparently tightly-closed violet flowers in August through early October are pollinated by Bumblebees that force their way in, shiny leaves form a whorl just under the flowering head, plant develops a sturdy tap root, clay tolerant, good Rain Garden plant, likes acid soil.
Plant Hardiness Zones: 3a-6b
Native Range: NS through s ON and e MB, south to CO, MO, & VA
Germination - Moderately Difficult: Surface sow outdoors in late winter & cover lightly with coarse sand
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