Q.How do I treat leaf miner on hollyhocks?
Most leaves of the hollyhocks have leaf miners, but have not affected the flowers. Flowers are fading quickly now, and wondering when I need to cut the plant back and mulch. When do I cut the hollyhocks back? I think I want to grow a million of these!!
Certified GKH Gardening Expert
Neem oil, which is both an organic insecticide and fungicide, sprayed on the plants is also recommended for most problems. Here is more information:
You can cut them back during your fall cleanup, or now, if the flowers have finished for the season.