There are black spots on my sunflower leaves. Does anyone know the cause and cure....
Did you water in direct sunlight?
They've possibly only.been watered twice since planting out and I never water before 7pm, the are grown to cut on an allotment and I can't get there much before then during the week.
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Did you water in direct sunlight?
They've possibly only.been watered twice since planting out and I never water before 7pm, the are grown to cut on an allotment and I can't get there much before then during the week.