About Amsonia hubrichtii Woodson
Amsonia hubrichtii, also called A. hubrichtii, grows 60 to 90 centimeters (2 to 3 feet) tall. It has upright stems that form bushy clumps. Its leaves are very narrow, numerous, and arranged alternately, which gives the plant a feathery look. The leaves are bright green in spring, and turn golden in autumn. In spring, clusters of flowers grow at the end of each stem. These flowers are powdery blue, 1.3 centimeters (0.5 inches) across, and have 5 petals. As temperatures get warmer, the flowers fade to white. The species is only found in a small number of populations in Oklahoma and Arkansas, mostly within the Ouachita Mountains Natural Division. It is classified as an endangered species in Oklahoma. It grows well in poor soils, and in conditions from full sun to partial sun.
