Question: do i cut back mums in the fall?
Answer: The next step in winter care for mums is to properly insulate them in the fall. The leaves of the plant will die back and become brown after a few hard frosts have hit your area. After the foliage of the plant has died back, you will need to cut it back. Cut back the stems of the mums to 3 to 4 inches (8 to 10 cm.)