 Okay, so that I should do anytime? You can do it. The sooner the better. It's called root pruning, and it's something that's practiced in our nursery world where the plants grow, grow, grow for years, and then nobody trims them. And when you go to get a ball on them, there's not a lot of root within the stem area. So you want to consolidate the root system so that it stays within that 18-inch circle.