poisonous blue аconite in the summer garden close-up

aconitum aconite flower blooming blue purple blossom bloom summer monkshood garden color closeup violet beautiful beauty colorful bud alkaloid monks'hood foxbane friar's cap aconitum napellus colors autumn florist pollinate skullcap poisonous toxic floral flora gardening natural plant petal herb meadow season outdoor growth seasonal background perennial vegetation chlorophyll green nature wild fragrance