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Blue Star Flower

Amsonia tabernaemontana

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Blue Star Flower (Amsonia tabernaemontana) at Ashcombe Farm & Greenhouses

Amsonia tabernaemontana flowers

Amsonia tabernaemontana flowers

(Photo courtesy of NetPS Plant Finder)

Height:  24 inches

Spread:  3 feet

Sunlight:  full sun  partial shade 

Hardiness Zone:  3a

Ornamental Features

Blue Star Flower has powder blue star-shaped flowers at the ends of the stems from late spring to early summer, which are interesting on close inspection. The flowers are excellent for cutting. Its narrow leaves are light green in color. As an added bonus, the foliage turns a gorgeous yellow in the fall. The fruit is not ornamentally significant.

Landscape Attributes

Blue Star Flower is an herbaceous perennial with a more or less rounded form. Its medium texture blends into the garden, but can always be balanced by a couple of finer or coarser plants for an effective composition.

This is a relatively low maintenance plant, and should be cut back in late fall in preparation for winter. Deer don't particularly care for this plant and will usually leave it alone in favor of tastier treats. It has no significant negative characteristics.

Blue Star Flower is recommended for the following landscape applications;

  • General Garden Use
  • Naturalizing And Woodland Gardens

Planting & Growing

Blue Star Flower will grow to be about 24 inches tall at maturity, with a spread of 3 feet. It grows at a slow rate, and under ideal conditions can be expected to live for approximately 20 years.

This plant does best in full sun to partial shade. It prefers to grow in average to moist conditions, and shouldn't be allowed to dry out. It is not particular as to soil type or pH. It is quite intolerant of urban pollution, therefore inner city or urban streetside plantings are best avoided. This species is native to parts of North America. It can be propagated by cuttings.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Garden  Naturalizing 
Applications
Flowers  Fall Color 
Ornamental Features