100 Seeds Bottle Gentian Gentiana andrewsii Native Wildflower

Bottle Gentian (Gentiana andrewsii) is a distinctive native perennial known for its unique closed, bottle-shaped deep blue flowers that appear in late summer and early fall. The blooms remain tightly closed, resembling small buds, and are pollinated primarily by bumblebees strong enough to force their way inside. This species is prized by gardeners for its late-season color when few other perennials are blooming and for its adaptability to moist, humus-rich soils in meadows, rain gardens, and woodland edges.

Bottle Gentian works well in native plant gardens, pollinator plantings, cottage borders, and naturalized meadow areas. Its upright stems and clustered terminal flowers provide interesting textural contrast alongside grasses and other late-blooming perennials. It prefers consistent moisture and partially shaded to sunny sites, though it can tolerate full sun where soil stays reliably damp. Plants grow slowly from seed and typically bloom in their second or third year, forming clumps that return each season.

Species: Gentiana andrewsii
Type: Herbaceous perennial
Plant_Habit: Upright, clump-forming
Sun: Full sun to partial shade
Soil: Moist to wet, humus-rich, well-drained
Zones: 3-8
Germination: Cold stratification required; sow surface and keep moist
Sowing: Surface sow, do not cover deeply; light aids germination
Spacing: 12-18 inches
Notes: Blooms late summer to fall; flowers remain closed and are pollinated by bumblebees