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Monarda

PlantyPruPlantyPru Posts: 142
in Problem solving
Just noticed my poor monardas, is this powdery mildew? They're not looking too happy up top but the lower leaves are fine. They're in a 30cm pot each so have room and they're outside on the back garden. Any ideas please?

Posts

  • PosyPosy Posts: 3,601
    There is a lot of mildew around this year but 30cm isn't really big enough. They prefer the ground, but failing that, I'd go for a much bigger pot. Width is probably more important than depth because they spread just under the surface.
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