My Impatiens are in a very large container outside. They have become very "leggy". Should they be cut back?
Impatiens can be cut back. For us northern gardeners, it's a bit late to do this as frost will come in 7 weeks or so. Still, a few weeks of cheerful impatiens is worth the effort. As I recall, there are visible nodes or joints to cut back to and you may already be seeing new leafy growth near the bottom of the leggy stems. Cut back to that. I would fertilize after cutting back and water well.