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buzzard50 added on July 7, 2011 | Answered

I planted some hollyhocks last year but they turned yellow after they got about a foot high and I thought they all died. This year one came back, but it’s starting to do the same thing. Help!!!

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Certified GKH Gardening Expert
Answered on July 13, 2011

Hollyhocks are prone to powdery mildew and other fungus. Treat them with a fungicide. This should help prevent the yellowing on the leaves.

As a precaution, I would also check watering for the plants. If they are not getting enough water, this can also cause yellowing.

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