Alphabetical Plant Listing

Amsonia tabernaemontana (Blue Star)

Blue Star, Willow Amsonia, Blue Dogbane, Willow Blue Star, Eastern Bluestar


Selected by the American Horticultural Society as one of the 75 Great Plants for American Gardens, Amsonia tabernaemontana (Blue Star) is an exceptional perennial with early-season blue flowers, attractive summer foliage, a sturdy habit and golden fall color. Amsonia tabernaemontana features clusters of delicate, pale blue, star-shaped flowers born on erect, sturdy, leafy stems in late spring - early summer. They rise above a graceful, willow-shaped, upright foliage that pleasantly colors up in the fall. This beauty is also low maintenance, disease and insect resistant, making this eastern U.S. native a first-rate garden plant.

  • Clump forming, Blue Star grows up to 24-36 in. tall and wide (60-90 cm). It will slowly increase in size over time without becoming invasive.
  • Easily grown in average, medium moisture, well-drained soils in full sun to part shade. Thrives in loamy, moist soils (but not soggy)! Once established, this plant is somewhat drought tolerant.
  • Undemanding and virtually pest-free and disease-free, Blue Star is a welcomed addition to borders, shade gardens, prairie plantings or cottage gardens. Best visual impact in mass plantings.
  • Deer resistant, clay tolerant.
  • If grown in full sun, this plant will not require staking or pruning. In part shade, this plant has a tendency to flop, therefore it will need to be pruned or staked. Cut back by 30% to 50% after flowering to maintain shape, prevent the plant from flopping over and promote a bushy growth.
  • Contact with the milky sap may cause skin irritation.
  • Native to the USA

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Requirements

Hardiness 3 – 9
Heat Zones 1 – 9
Climate Zones 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Amsonia - Bluestar
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)
Summer (Early)
Fall
Height 2' – 3' (60cm – 90cm)
Spread 2' – 3' (60cm – 90cm)
Spacing 24" – 36" (60cm – 90cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Showy
Native Plants United States, Midwest, Illinois, Indiana, Kansas, Missouri, Ohio, Northeast, Delaware, Massachusetts, Maryland, New Jersey, New York, Pennsylvania, Southeast, Alabama, Arkansas, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, Southwest, Oklahoma, Texas
Tolerance Clay Soil, Deer, Drought
Attracts Butterflies
Garden Uses Beds and Borders
Garden Styles Informal and Cottage, Prairie and Meadow

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Great Plant Combination Ideas with Amsonia - Bluestar

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* Photo courtesy of Botanik Foto

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.


Requirements

Hardiness 3 – 9
Heat Zones 1 – 9
Climate Zones 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Amsonia - Bluestar
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)
Summer (Early)
Fall
Height 2' – 3' (60cm – 90cm)
Spread 2' – 3' (60cm – 90cm)
Spacing 24" – 36" (60cm – 90cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained
Characteristics Showy
Native Plants United States, Midwest, Illinois, Indiana, Kansas, Missouri, Ohio, Northeast, Delaware, Massachusetts, Maryland, New Jersey, New York, Pennsylvania, Southeast, Alabama, Arkansas, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, Southwest, Oklahoma, Texas
Tolerance Clay Soil, Deer, Drought
Attracts Butterflies
Garden Uses Beds and Borders
Garden Styles Informal and Cottage, Prairie and Meadow

Great Plant Combination Ideas with Amsonia - Bluestar

Guides with Amsonia - Bluestar

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