Large cultivar exceeding 5'. Flowers over a long period from June - August. Flowerheads are pale blue or pink with a lighter center. G...Read Moreood autumn color. One of the more cold hardy types (but no actual zone hardiness given). Sepals are ovate and entire.
Large cultivar exceeding 5'. Flowers over a long period from June - August. Flowerheads are pale blue or pink with a lighter center. G...Read More