More info about our plant sizes.
Please email us to confirm at-nursery availability of plants that are too big to ship.
A long, showy summer display of dark violet-blue flowers over a bushy clump of dark green foliage. Dead-heading increases blooms. Tough and lovely for a sunny dry spot.
Perennial clump reaching 20 x 20 in, possibly a bit bigger.Minimum temperature: -50° F