Threadleaf Blue Star (Amsonia hubrichtii) has quickly become a sought-after & must-have perennial not for its flowers, though they’re nice enough, but for the thin, ferny foliage that stands up to all kinds of weather, waving in the slightest breeze. The sturdy, arching branches emerge from the ground in spring and grow to about 3′, followed by light blue flower clusters in May. Once the temperatures drop in fall they turn a long lasting golden yellow. It makes a great presence in the landscape whether planted in groups or individually. If you want to see the flowers and habit check them out under Galleries.