Blooming later than most Aconitum species, award-winning Aconitum carmichaelii 'Arendsii'(Monkshood) is an erect, tuberous perennial with dense spires of rich azure-blue flowers in early to mid fall. Its hooded flowers resemble the hood worn by medieval monks, hence the common names of monkshood. They are borne atop thick, rigid stems clad with a handsome foliage of deeply divided, leathery, dark green leaves. This fall-flowering makes outstanding cut flowers and is perfect for wet soils.

  • Recipient of the prestigious Award of Garden Merit of the Royal Horticultural Society
  • Grows up to 2-4 ft high (60-120 cm) and 12-18 in. wide (30-45 cm). Plants may grow up to 5 ft. high (150 cm) in optimum growing conditions, and may require staking.
  • Thrives in full sun or part shade and in moist, organically rich and well-drained soils. Best in full sun in cool summer climates. Do not let soils to dry out.
  • Deer and rabbit resistant
  • Cut back plants after flowering to promote re-bloom later in the season.
  • Divide every third year in fall or late winter to maintain vigor, although plants can be slow to re-establish. May be grown from seed.
  • Use gloves when handling plants as all parts are highly toxic. Avoid planting in areas where small children might come in contact with it.
  • Native to central China