Q What causes orange splotches on hollyhocks?
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.