A tall vertical plant with dark blue flowers. Most all parts of this plant are poisonous.
Cold hardy 4-8, AHS 8-3
partial shade to full sun
average to moist, avoid dry
Soil & Site
Prefers moist soils with abundant organic matter.
shaped like small helmets or hoods with a beaked front, mostly blue with a few bicolors
palmately veined, deeply divided to the center
A tall vertical plant reaching 3-4 feet by 12-18" depending on the cultivar.
Slow to recover from division so best left in place. May need staking. Remember to wash all equipment and hands after working with plant. Can be cut back to control height but this will mean loss of the larger terminal buds.
slow from seed, division
Native to Europe
A very toxic plant ingestion of or even touching the sap can cause cardiac or respiratory failure The leaves and roots contain aconitin a narcotic alkaloid. Wash hands after handling this plant. Native to Europe.
Notes & Reference
#40-Manual of Herbaceous Plants (Steven Stills), #54-The Well Tended Garden (DiSabato-Aust), #79-Perennials For Every Purpose (Larry Hodgson)