0.25 to 1 feet
1 to 1.5 feet
- late spring
- early summer
Depends on variety. Flowers are traditionally medium to dark violet, but newer hybrids have introduced pale purple, pink, and white blooms.
Starts out grayish green in spring and becomes medium green by summer.
Shape in flower:
flower stalks with upright spikes
Flowers borne individually on stems rising above the foliage.