I live in southern Ontario, Canada, where the tempeartures can drop as low as -25 degrees F. My roots will be three years old this spring, and I was hoping to enjoy them when they emerge next spring. I have not cut the ferns down yet and wondered whether I should wait until the spring or do it now.
Certified GKH Gardening Expert
Wait until the ferns turn brown by themselves, then cut them down. It's also important to apply compost, straw, pine needles, or other mulch over the bed to protect the plants from the cold, as explained here: