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aconitum problem

I have an aconitum that is about 3 years old. It is about 4 feet tall and appears healthy, but has never flowered. I have other monkshood nearby that do flower, so I do not think it is a soil, light or water problem. At the tips, where the buds/flowers should be, there is a blackish withering (see photo). It has consistently done this since I have had it. What could the problem be?image


  • nutcutletnutcutlet PeterboroughPosts: 26,378

    I have ome that don't flower reliably, mostly the tall, late flowering ones. Napellus is OK. I've always put it down to my soil being too dry. 

  • Paul B3Paul B3 Posts: 2,964

    The blackish withering tips could be crown-rot ; check online , sometimes the only option is to discard the plant ; seems to be a soil borne disease .

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