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Bottle gentian

Gentiana clausa

Also called Blind Gentian, Closed Gentian, Meadow Bottle Gentian, Meadow Closed Gentian

Bottle gentian
Photo: USDA, Public domain

Bottle gentian is a native North American perennial wildflower with blue flowers that stay mostly closed, so bumblebees must force them open. It is grown mainly in cool, moist garden beds or woodland settings rather than as a houseplant.

Family
Gentianaceae (Gentian family)
Grows as
Perennial
Light
Part shade, Full sun
Water
Keep soil evenly moist during the growing season and avoid waterlogging.
Soil
Moist, humus-rich, well-drained loam.
Temperature
5–25 °C; hardy to about -30 °C, as it is native to cold northern meadows.
How easy
Moderate
Native range
S. Québec to NW. North Carolina
Climate
temperate

About

Gentiana clausa, one of several plants with the common name "bottle gentian", is a 1'–2' tall flowering plant in the Gentianaceae family. It is native to Eastern North American moist meadows and woods at higher elevations, from Quebec in the north, through the Appalachian range to North Carolina and Tennessee in the south. It has paired, lanceolate leaves, usually on unbranched stalks, and blue blooms which remain closed or nearly so (thus the Latin specific name). Bumblebees are strong enough to push open the petals to suck nectar, thus pollinating the flower, just like for Gentiana andrewsii. Gentiana clausa flowers from late August to October.

Other Gentiana plants

Gentian · Willow Gentian · Trumpet Gentian · Gentiana loureiroi · Great Yellow Gentian · Snow gentian · Hungarian Gentian · Gentiana paradoxa · Crested gentian · Showy Chinese Gentian · Gentian

Text excerpted from the Wikipedia article Gentiana clausa by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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