
Alisma
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on January 13, 2017
Wait until after the winter's last possible frost date in your area, then prune away the dead portions. This article explains more:
https://www.gardeningknowhow.com/plant-problems/environmental/tips-for-saving-cold-damaged-plants.htm
Was this answer useful?
00