6 Top Monardas Join The Resistance Against Powdery Mildew

Scarlet bee balm flower heads

Monarda didyma, Scarlet bee balm

Bee balm (monarda) is a spectacular plant when grown under the right conditions. Given plenty of sun and well-draining soil, it will flower from mid to late summer. Still, the plant’s annoying predisposition to powdery mildew often makes it an eyesore in the garden. So, recently researchers at Delaware’s Mt. Cuba Center set out to determine which varieties offer the best resistance. Continue reading