Plants that experience powdery mildew include: Powdery mildew is a major concern with bee balm as it can stress and weaken the plant. This fungus deposits gray or white powder on the bee balm's ...

Also known as bergamot, bee balm (Monarda spp ... but it blooms in stunning shades of pink, white, purple, and red. It's also relatively easy to grow for gardeners in USDA hardiness zones ...