Using Air-Pot® containers
Superoots Air-Pot containers can come as pots complete with base, or be used without a base. When used without a base, ideally root pruning fabric should be used at the base, but alternatives are concrete, plastic or a chemically treated ground cover fabric.
The Air-Pot containers must be assembled so that the cones with holes are pointing outwards. Thus, the closed inward pointing cones direct the roots out to the open ended cones where they are pruned by the air at the outer edge.
The containers can be made to any diameter in a variety of heights which makes it easy for the grower to produce a rootball of varied dimensions to suit the tree or the client.
With the great majority of roots growing laterally and being pruned, rooting down is never a problem. The root systems of plants grown in the Superoots Air-Pot containers normally lock up the potting mix in about two months to allow the lifting of the plant without the loss of the mix out of the bottom.