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This plant is said to grow outdoors in the following regions:
Rock Falls, Illinois
Cedar Rapids, Iowa
Durham, Maine
Billerica, Massachusetts
Blanchard, Michigan
Marquette, Michigan
Kingston, New York
Concord, North Carolina
Gold Hill, Oregon
This is a really amazing performer in my zone. Lots of rhizome growth and plenty of bloom.
This has an intensity of dark purple that my camera did not capture - nothing else quite like this coloring. Awarded the CM by the SNHF (...Read MoreFrance) in 1924.
This is a really amazing performer in my zone. Lots of rhizome growth and plenty of bloom.
This has an intensity of dark purple that my camera did not capture - nothing else quite like this coloring. Awarded the CM by the SNHF (...Read More