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 name of monkshood.

Aconitum carmichaelii is native to central China and is sometimes commonly called autumn-flowering monkshood because of its late summer to early fall bloom. It blooms later than most other species of Aconitum. It is an erect, tuberous-rooted perennial that features dense panicles (to 8” long) of hooded flowers atop rigid, leafy stems ...

monk's hood 'Arendsii' A tall herbaceous perennial, producing branched panicles of rich lavender-blue flowers that appear in early to mid autumn on stems that can reach over 1.5m high, above dark green, leathery, palmate to deeply-divided, lobed foliage

This late-flowering selection has incredible, tall spikes of deep violet-blue, hooded flowers, a total surprise when they appear in mid-autumn. Attractive dark green, glossy foliage. Stems may need to be staked in summer. An outstanding cut flower. Plants prefer a site that will not dry out in summer, away from thirsty tree roots.

When the perennial garden slips into its late summer slump, stately Aconitum carmichaelii 'Arendsii' steps up with tall spikes of azure-blue flowers that continue on into autumn. This Monkshood plant is a handsome partner for Japanese Anemones. A …

Produces interesting spikes of rich blue flowers. Dark, glossy-green foliage is also beautiful. Especially nice in woodland gardens. Makes a dependable mixed border plant. Cut flowers are long-lasting in fresh bouquets. Best planted in groups. Perennials can be planted anytime from spring through fall.

An excellent cut flower, unique for its large draped sepal, Aconitum loves cool summer nights, moist, but not wet soil and protection from the heat of the day. Perfect in the border or at woodland’s edge, their bold presence makes an engaging companion to Anemone, Helenium and late-blooming Persicaria.

Aconitum ‘Arendsii’ is a very popular stocky monkshood with large purple-blue hooded flowers. The leaves are thick and leathery with a glossy surface and are broadly dissected into tri-lobed sections.

Plant database entry for Monkshood (Aconitum carmichaeli 'Arendsii') with 43 images, one comment, and 27 data details.

As one of the latest bloomers, with shimmering amethyst flowers, 'Arendsii' & its species generally (see A. charmichaeli) is the best choice for keeping monkshood blooms in the garden very late in the year.