I'm Mr Dahlia Downer with all my bad news, but the high tunnel dahlias have been a total flop. They got botrytis. Flowers turn brown before they open. I think it is from poor air circulation and lack of weed control. My sides on the high tunnel are also closed.
I have a question, please, to anyone who might know. Is it worth it to dig up the tubers in the fall and try them again in a different spot? Or am I now infected with the disease and would just carry it to the new location?
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