Air-Pot containers are perfect for trees such as pawpaw (Asimina triloba) which have a strong tendency to form water seeking tap roots as seedlings. The tap root will be air pruned when it reaches the base stimulating the tree to send out a mass of lateral roots. These are sensitive plants so will receive V.I.P. (Very Important Pawpaw) treatment.
Other trees benefitting from an Air-Pot start are a little lemon plant grown from a pip, an older Meyer’s Lemon which is flowering profusely (a cold-tolerant variety) and a Black Pine shooting up new growth.
Fruit bushes are proving to crop well in Air-Pot containers. A redcurrant and gooseberry in 20 litre pots are now well established with fruit forming nicely, but these are vigorous plants so will probably benefit from potting-on into the largest pot in the Garden Range after fruit as been picked. Actually given how quickly these bushes have grown they could have jumped straight into the 38 litre Extra- Large size last time they were re-potted, bigger is better for soft fruit.
I have been enjoying the super fresh rocket grown by the back door in an Air-Pot salad tray and the green multiplier onions in a 20 litre pot. These onions are a perennial which can be harvested at any time of year and propagated by simply replanting an offset. They do not produce seed (like garlic), so you have to know someone who can share them. They have been grown at my allotment site for a century, we call them Syboes in Scotland.