How can you keep the leaves of bee balm flowers from turning gray?
I like the hummingbirds that are attracted by my bee balm flowers, but every year the leaves turn gray and ugly. How can I keep the plants looking good?
Submitted by BHGPhotoContest

It sounds as though your bee balm (Monarda didyma) suffers from powdery mildew. This fungal disease can be severe on bee balm. Plants under stress are more likely to contract the disease, so keep the soil evenly moist, and provide good air circulation to minimize the problem. However, if you're growing a susceptible cultivar, there may be little you can do to prevent your plants from turning gray by the end of summer. A better solution may be to grow one of the resistant cultivars, such as 'Colrain Red', 'Raspberry Wine', 'Violet Queen', 'Petite Delight', or 'Marshall's Delight'.

Answered by BHGgardenEditors