‘Raven’ allures with dark purple flowers from late spring to early summer, inflorescences rise above the green clump-forming foliage. Occasionally leaves will have dark chocolate-purple spots at lobe bases but most often a full green. Seedling selection from Rainforest Gardens, BC.

Mature size: 1.5-2.5 ft T x 1.5 ft W

Minimum temperature:-20 F