Lifecycle:
biennial,
perennial
Biennial or short-lived perennial. Cut back to crown immediately after flowering to increase longevity.
Ease-of-care:
moderately difficult
Short-lived without regular pruning and division.
Height:
3 to 5 feet
Spread:
1.5 to 2 feet
Bloom time:
- early summer
- mid-summer
- late summer
Flower color:
Blue to purplish-blue.
Foliage color:
dark green
Foliage texture:
coarse
Shape:
upright
Shape in flower:
flower stalks with upright spikes
Flowers are borne in panicles on erect stems.