String Theory Blue Star

String Theory Bluestar

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Regular price $39.99
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  • Amsonia x 'String Theory' PP34,419
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Pairs well with

Compact and mounded, this variety features fine, thread-like foliage that turns golden-orange in fall. Clusters of light blue flowers appear in late spring, proving that tough plants can be delicate-looking.

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Size at Maturity

Height 18"- 22" Spread 32"- 36"

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Growing Zone

USDA Hardiness Zones 4-9

Lowest Temperatures -30°F to -20°F

Light Requirements

Full sun to part sun- at least 4 hours direct sun per day

Wildlife Benefits

  • Supports Bees
  • Attracts Butterflies

Special Conditions

  • Deer Resistant
  • Drought Tolerant
  • Moderate Salt Tolerance
  • Disease Resistant

Seasons of Interest

  • Spring
  • Fall

How to Plant

Give your new plant the best start possible. Click here for general planting instructions.

Grow With Confidence

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Planting and Care Guide

Planting Tips

Plant in average, well-drained soil. Tolerates clay and poor soils. Space 18–24 inches apart. Water thoroughly after planting.

Care Tips

Water regularly after planting; once established it is quite drought tolerant. Cut to the ground in late fall or early spring. Divide every 4–5 years in spring if desired. No fertilization needed. Largely pest-free. String Theory is a fine-leaved bluestar selection with especially delicate, thread-like foliage that creates an extraordinary feathery texture in the garden. The pale blue star flowers in spring and brilliant yellow fall foliage color are consistent and reliable. An exceptionally refined native perennial.

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