Rhododendron Has Purple Leaves That Turn Brown And Drop Off

Question From: Elkton, Virginia, United States
Q: Rhodie has purple leaves that turn brown and fall off but is showing new growth.what can i do?

A: The purple colored leaves could be a magnesium deficiency. Epsom salts in a quick fix. Make a soil drench using one tablespoon Epsom Salts to a gallon of water. Water the shrubs before applying. There are many reasons for browning leaves. Sun burn and winter damage come to mind. If new leaves remain healthy it's probably winter kill. Best And Happy Yardening, Nancy