Air-Pot® containers are the original and the best air-pruning containers around, and have been made in Scotland, UK from recycled plastic since 1997. They are UV-stabilised and last many years in our harsh Australian climate — I can attest to that!
The Air-Pot system is highly-regarded by gardeners and horticultural experts worldwide for the superior and dense root systems they develop — see how they work via the diagrams and videos below.
The Air-Pot System in Diagrams
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When the tap root reaches the base, increased air in the growing medium dehydrates the tip, pruning it and stimulating lateral root branching.
copyright © The Caledonian Tree Co. Ltd
Each of the lateral roots is then steered by the shape of the wall towards an air hole, where it is also air-pruned, causing yet more branching.
copyright © The Caledonian Tree Co. Ltd
The process is continually repeated until the plant has developed a dense mass of fibrous roots. This amazing root structure leads to increased take up of nutrients and water, faster growth, and healthier trees.
copyright © The Caledonian Tree Co. Ltd
The Air-Pot System in Videos
Watch this short three-minute for a demonstration of the air-pruning in action!
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This short video shows how to assemble and fill these containers:
copyright © The Caledonian Tree Co. Ltd