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First reproduced here 2nd February 2023


When the tap root reaches the base, increased air in the growing medium dehydrates the tip, pruning it and stimulating lateral root branching.


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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.


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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