B and T World Seeds' reference number:
USDA average, annual, minimum temperature Zone:4
Type of plant - perennial
Flower: BLUE-PURPLE 20x7mm., in clusts.
Foliage: -18cm., lance.-obl.
Height in meters: 0.40
is included in the following B and T World Seeds flowering plant categories:
43: Herbaceous Border Plant Seed List
87: Natives of Central U.S.A.
94: Natives of Rocky Mountain Area U.S.A.
185: Plant Species whose germination is improved by Smoke