20 in stock
1 Gallon Pot. ‘The Rocket’ is an imposing, clump-forming perennial with a mounded habit which is grown both for its foliage and for its spectacular flower spires. Large, long-petioled, coarsely-toothed, triangularly heart-shaped, mostly basal, light green leaves (up to 1′ long and wide) form a foliage mound that is attractive even when the flowers are not in bloom. Small, bright, lemon yellow, daisy-like flowers (1″ across) appear in dense racemes (18-24″ long) in mid-summer.