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Gentiana andrewsii (Closed Bottle Gentian)

Closed Bottle Gentian, Closed Gentian, Bottle Gentian

Gentiana andrewsii, Closed Bottle Gentian, Closed Gentian, Bottle Gentian, Blue flowers
Gentiana andrewsii, Closed Bottle Gentian, Closed Gentian, Bottle Gentian, Blue flowers

Gentiana andrewsii (Closed Bottle Gentian) is a clump-forming perennial noted for its tight clusters of bottle-shaped, dark blue to purple flowers which always remain closed. Since the petals never open, the unusual flowers look like buds about to open. Blooming in late summer to early fall, sometimes until frost, the blossoms appear at the tops of the stems or in the upper leaf axils. Plants may count up to two whorls of flowers. Bumblebees are the primary pollinators of the flowers, as they are one of the few insects that can force their way past the closed corolla. The foliage of narrow, rich green leaves, whorled or opposite, appears below the clusters, turning gold with ruddy highlights after flowering. Easy to grow, Closed Bottle Gentian is a welcome addition to a moist wildflower garden, where its intriguing blue blossoms will add a subtle touch of color.

  • Grows up to 12-24 in. tall (30-60 cm) and 12-18 in. across (30-45 cm). It will naturalize over time into large clumps.
  • Thrives in part shade in humus-rich, acidic, moist, well-drained soils. Plant in soil that is not too acidic and maintain moisture throughout the growing season without letting the soil get soggy.
  • Ideal for shady borders, woodland gardens, cottage gardens, rock gardens, or along streams or ponds.
  • Virtually pest and disease-free. Deer resistant.
  • Propagate by seed or root division.
  • Native to eastern North America, from New England west to Saskatchewan, south to Georgia and Arkansas.

Requirements

Hardiness 3 - 7
Plant Type Perennials
Plant Family Gentianaceae
Genus Gentiana
Common names Bottle Gentian, Gentian
Exposure Partial Sun
Season of Interest Summer (Late)
Fall
Height 1' - 2'
(30cm - 60cm)
Spread 1' - 2'
(30cm - 60cm)
Spacing 18" (50cm)
Maintenance Low
Water Needs Average
Soil Type Clay, Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Showy
Native Plants Colorado, Connecticut, Delaware, Illinois, Indiana, Iowa, Kentucky, Maryland, Massachusetts, Michigan, Midwest, Minnesota, Missouri, Nebraska, New Hampshire, New Jersey, New York, North Dakota, Northeast, Ohio, Pennsylvania, Rhode Island, Rocky Mountains, South Dakota, Southeast, United States, Vermont, Virginia, West Virginia, Wisconsin
Tolerance Deer, Clay Soil
Attracts Bees
Garden Uses Beds And Borders, Ponds And Streams, Underplanting Roses And Shrubs
Garden Styles Gravel and Rock Garden, Informal and Cottage
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Alternative Plants to Consider

Gentiana clausa (Bottle Gentian)
Gentiana ‘Strathmore’ (Gentian)
Gentiana verna (Spring Gentian)
Gentiana asclepiadea (Willow Gentian)
Gentiana acaulis (Stemless Gentian)

Recommended Companion Plants

Physostegia virginiana ‘Rosea’ (Obedient Plant)
Liatris pycnostachya (Prairie Blazing Star)
Dodecatheon meadia (Shooting Star)
Veronicastrum virginicum (Culver’s Root)

Find In One of Our Guides or Gardens

Stunning Blue Flowers to Enhance Your Garden’s Beauty
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
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Requirements

Hardiness 3 - 7
Plant Type Perennials
Plant Family Gentianaceae
Genus Gentiana
Common names Bottle Gentian, Gentian
Exposure Partial Sun
Season of Interest Summer (Late)
Fall
Height 1' - 2'
(30cm - 60cm)
Spread 1' - 2'
(30cm - 60cm)
Spacing 18" (50cm)
Maintenance Low
Water Needs Average
Soil Type Clay, Loam, Sand
Soil pH Acid, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Showy
Native Plants Colorado, Connecticut, Delaware, Illinois, Indiana, Iowa, Kentucky, Maryland, Massachusetts, Michigan, Midwest, Minnesota, Missouri, Nebraska, New Hampshire, New Jersey, New York, North Dakota, Northeast, Ohio, Pennsylvania, Rhode Island, Rocky Mountains, South Dakota, Southeast, United States, Vermont, Virginia, West Virginia, Wisconsin
Tolerance Deer, Clay Soil
Attracts Bees
Garden Uses Beds And Borders, Ponds And Streams, Underplanting Roses And Shrubs
Garden Styles Gravel and Rock Garden, Informal and Cottage
How Many Plants
Do I Need?
Guides with
Gentiana (Gentian)
Not sure which Gentiana (Gentian) to pick?
Compare Now

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