Thunbergia grandiflora
Sky Flower, Bengal Clock Vine
Full Sun, Partial Shade, Shade
Zones 8-11
Grows 18 to 25 feet
Thunbergia grandiflora has clusters of 3 inch sky blue flowers all summer and is vigorous even in shade. A native of India, the flowers and foliage make great cuts for arranging. Grow with plenty of moisture and fertilizer during the summer. Prune as desired.