We are growing biennial hollyhock flowers in one our raised beds again this year. Last spring, I planted about a half a dozen double flowered hollyhock plants that I bought from a nursery. We also have single flower hollyhock varieties that reseeded on their own from last year’s hollyhocks.

The flowers are beautiful, but the leaves look messy. Their upper leaves are full of yellow spots, and most of their lower leaves have turned brown and died. I suspect the problem is a disease called hollyhock rust. The hollyhocks that are growing together in a group of about 8 plants seems to have much more of the disease than the few hollyhocks I have growing on their own in other parts of our garden. I don’t want to spray fungicide on them, because I have them growing near vegetables. So I will just pull them out as they die back later in the summer.

July 15 2012 11:29 am | Hollyhock