Ozark Blue Star: Gorgeous Soft Blue, Star-Shaped Flowers

Ozark Blue Star: Gorgeous Soft Blue, Star-Shaped Flowers

Ozark blue star

Photo Compliments of Peganum

Amsonia illustris is more commonly called Ozark blue stare because of the gorgeous soft blue, star-shaped flowers. Individual flowers are small, but they bloom in fluffy clusters and put on a lovely show for several weeks. The flowers are one of the truest blues you will find in flower colors; flowers appear around Memorial Day and last two to three weeks.

The shiny foliage, with willow-shaped leaves, stays green through summer and turns a brilliant gold in the fall; the foliage texture provides great contrast for almost any other plant, making them very versatile in garden design. The plants are native to many regions of North America and grow pretty much problem free.

This is an erect, clump-forming plant that features terminal, pyramidal clusters of 1/2 inch; star-like, gorgeous soft light blue flowers in late spring atop erect, leafy stems that reach a height of 2 to 3 feet. Narrow, willow-shaped, leathery, shiny green leaves can reach 6 inches in length and turn an attractive yellow in fall.

How To Make Your Ozark Blue Star Thrive

Ideal conditions are moist, loamy soils; it tolerates some drought. When grown in full sun, plants often require no pruning or staking. When grown in some shade and/or in rich soils, however, plants tend to become more open and floppy and often require staking or pruning. For a neater appearance, particularly for shade-grown plants, consider cutting back stems by 1/2 to 1/3 after flowering to promote bushy growth and, if desired, a more rounded foliage mound. Ozark blue star will thrive in Hardiness Zones 5 to 9.

General Ozark Blue Star Information

Pests and Diseases

No serious insect or disease problems.


Easily grown from seed.

Garden Uses

Use in borders, meadows, open shade gardens, native plant gardens, and naturalized areas.

Quick Facts

  • Family: Apocynaceae
  • Common Name: Ozark blue star
  • Type: Herbaceous perennial
  • Hardiness Zones: Zones 4 to 9
  • Height: 2 to 3 feet
  • Spread: 2 to 3 feet
  • Bloom Time: May
  • Bloom Description: Light blue
  • Leaf: Great fall color
  • Sun: Full sun to part shade
  • Water: Medium
  • Maintenance: Low
  • Landscape Uses: Containers, beds & borders, rain garden
  • Attracts: Butterflies, hummingbirds
  • Tolerates: Deer

Photo Search

Flicker – Ozark Blue Star Photos

Google – Ozark Blue Star Photos

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