Periwinkle ground cover
What does periwinkle look like in the winter? Does it stay green? Do you need to mow? What happens if you mow?
Certified GKH Gardening Expert
Yes, Periwinkle does retain it's green color throughout winter in most climates.
I know in my own zone 4 garden it stays mostly green with some areas turning a dark almost burgundy color. It recovers nicely when the weather warms.