Amsonia hubrichtii/Willow Blue Star

Amsonia's billowy mounds just about stop traffic, even after the blooms have faded. It has that kind of impact, especially in a sizable mass. It's native to the rocky outcrops of Arkansas and Oklahoma.
Details
- Hardy to Zones 3-9.
- Sun or partial shade, but there's better bloom and height with sun.
- Grows to 2-3 feet high and wide.
- Flowers May-June.
Care
- Established plants are reasonably drought-tolerant, though sources tell us that they generally prefer even moisture.
- After it blooms cut it back to 6 to 8 inches to make it bushier and prevent flopping, shaping the plant mass as you do it (making the outside and front shorter).
- Divide in spring or fall, though it shouldn't need it for many years.
- It overwinters better if not cut back to the ground in fall, so wait til early spring.
The changes are happening Good Information in Print
- The Well Tended Perennial Garden
by Tracy DiSabato-Aust is the best-selling book on how to make your perennials healthier and better-looking. - Encyclopedia of Perennials
by Graham Rice is exhaustive and an outstanding general resource on the subject. - The Complete Flower Gardener
by Cutler and Ellis is another source I consult regularly.
Location Matters
My test garden is in the Washington, D.C. area, Zone 7A. Have any comments you'd like to see included about this plant? Send 'em along.




