With all the current discussion concerning containers, I'll would like to tell about Root Builder containers. Root Builder containers come in 100 foot rolls. The rolls come either 18" or 30" in height. With a Root Builder roll a grower can make containers from 5-gallon to 300+ gallons in size. The time it takes to make a container is approximately two minutes. I have converted all of my larger trees over to Root Builder containers. Two of the advantages are: (1) Root Builder containers have air root pruning technology, therefore the tree's root system NEVER EVER has curling roots that circle around and around the container walls. (2) The container can be opened in less than one minute to visually check the entire root system, and then, if needed, either be enlarged into a larger container, or just re-closed. Therefore the tree can be transplanted into a larger size with ABSOLUTELY ZERO (0) stress to the tree. Lastly, they can be resused over and over. - Millet