The cobalt blue flowers of Azure Monkshood appear in late summer and early fall. Aconitum carmichaelii 'Arendsii' blooms for a long period, and Dr. Alan Armitage says "it's the best late flowering Monkshood in cultivation."  It gets the common name Monkshood because the upper sepal of each flower develops into a large, helmet-like structure that somewhat resembles the hood worn by medieval monks.  'Arendsii' stems are unusually thick and are less likely to need support than other Monkshood.  All parts of the plant are poisonous. Breed by German nurseryman Georg Arends at his nursery near Cologne.

• Category: Perennials
• Alternate Cultivar: Arendsii
• Hardiness Zone: 4
• Height: 36 Inches
• Spread: 24 Inches
• Bloom Color: Blue