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Dormancy: Winter Height: 60″ tall Culture: Sun to Light Shade Origin: China (aka: A. incisofidum CY T-441/04) Since the statute of limitations has expired, I’ll publicly admit to aconitum genocide. Yes, it’s a dark secret, but there are a lot fewer monkshoods in the world thanks to yours truly and our hot, humid climate. My point in this admission is that this Chinese form of Aconitum carmichaelii has actually prospered, forming vigorous 5′ tall clumps of cut, trifoliate, dark green leaves. In October, the deer-resistant clumps are topped with 6″ spikes of helmet-shaped, indigo-blue flowers. If you’d like to try an aconitum that won’t attempt to sneak back to China on the midnight flight, give this one a shot. This is not the same as the heat-intolerant Aconitum carmichaelii of the trade, so we’ve named this strain Aconitum carmichaelii ‘Autumn Indigo’.