At Greenwood Growers, we don’t just sell trees. Trees from our farm are carefully grown for maximum performance. This is done through careful consideration and the use of the RootMaker® patented system developed by Carl Whitcomb, Ph.D., a distinguished researcher who discovered air-root-pruning. RootMaker® containers are designed to promote root branching and new roots at every phase of nursery production. Don't settle for less. You will not find the level of quality anywhere else that we provide in every tree grown at Greenwood Growers, Inc.