I usually can take pretty good care of the bare root apples I plant in pots over the summer, so I have not bothered with root gel and my trees seem to do fine. However, on an impulse, I purchased some of the dry stuff you mix with water just this week. It only cost $4.95, so I figured I'd give this years trees a little TLC. I don't know if it will help, but I don't think it will hurt. I'm not much help WTNUT, but that's my story.