Among the finest perennials to grace the garden in late summer is the dark blue-flowered closed bottle gentian. Bottle Gentian has bottle-like deep blue flowers that never actually open. The blooms are pollinated exclusively by bumblebees, which have the size and strenth needed pry open the flowers and gain entry. Bottle Gentians are slow-growing but…
In nature Damp deciduous woods, pond edges, meadows.
Companion plant suggestions include Lady in Red
It is happiest in Grows in moist, rich, slightly acidic soils. Sand, Loam, Clay.
In terms of water, Bottle Gentian needs Average