Q What causes orange splotches on hol­ly­hocks?

Garden Answers (UK) - - Gourmet Grower - STEPHANIE TAY­LOR, CHESHIRE

A Hol­ly­hocks are prone to rust dis­ease in wet sea­sons, but they also strug­gled in this sum­mer’s ex­treme drought. It’s ex­ac­er­bated when spent flower stems aren’t cut down and set seed, which places a huge strain on plants. In this weak­ened state they’re more prone to dis­ease. Cut them back and, with moist soil, they should re­grow and re­cover. How­ever, it’s worth sow­ing seeds now as in­sur­ance.

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