bruxupanswered grow question 3 years ago I say top! I've had nothing but success with topping my plants over the last 3 years. They branch out and get more full, they are easier to control, and I've gotten bigger yields in my experience. It does cause some stress to the plant, but if it's already strong and healthy, it should fully recover within a week. The plants I'm growing right now weren't even affected by being topped and haven't stopped growing. Hope this helps. Good luck with the grow. Cheers!