Knockouts need help!
I have several established knockouts-we have several acres, and they provide lots of color with little fussiness. I prune them back each spring, but this year, the plants are 5foot-ish, and only about 6" of green at the bottom of the canes. The winter was certainly harsher than ever-do they need a little more time to declare themselves, or should I cut them back to the green now? Thanks!