Do I cut back my silver mound for the winter (in SE Michigan) or leave it as it is?
Fall Care of Silver Mound
Certified GKH Gardening Expert
Trimming off spent blooms is normally done in mid-summer. While you do not have to cut it back in fall, if you would like to do so for appearances, this is fine and should not harm the plant. However, in cooler regions it is better to leave the old growth over winter for added protection and simply cut it all back prior to new growth in spring.