PPA names Amsonia hubrichtii 2011 Perennial Plant of the Year

The Perennial Plant Association has named Amsonia hubrichtii as the 2011 Perennial Plant of the Year. "Arkansas blue star" and "thread-leaf blue star" are common names for the perennial, which grows 36 inches tall and 36 inches wide in a mounded form. The multi-season perennial has blue flowers in late spring to early summer and a bright yellow-golden fall color.

Amsonia offers a variety of features throughout the seasons. From late spring to early summer, two- to three-inch wide clusters of small, light blue, star-shaped flowers are borne above the ferny foliage. The alternate-arranged leaves are bright green in spring and summer, but turn a bright yellow-golden color in fall.

Other cultural highlights:

    * Light – Plants thrive in full sun to partial shade.

    * Soil – This plant performs best in average, moist well-drained soil but tolerates less moisture. Once established, it can tolerate drier conditions.

    * Uses – This perennial for the seasons is an asset in borders, native gardens, cottage gardens, or open woodland areas. It is best when massed. Arkansas blue star is attractive when mixed with ornamental grasses and plants that have attractive seed heads.

    * Unique Qualities – Light blue flowers in spring are followed by marvelous foliage in summer. Golden-yellow fall color is second to none among herbaceous perennials.

    * Hardiness – USDA Zones 4 to 9