Mature Tree Transplanting: Science Supports Best Management Practice

Abstract

Replicated research on transplanting mature trees (trunk diameter >750 mm) is not practical. Instead we must apply the knowledge we have gained from studying smaller trees to maximize success at this larger scale. This paper summarizes our understanding of tree biology and horticulture contributing to the successful transplanting of trees, e.g. root loss and regrowth, water stress, carbohydrate status, root ball size, preparatory root and canopy pruning, timing of operations etc. The specific detail of the transplanting operations undertaken on four mature trees in Hong Kong in the last 15 years, are then evaluated to examine the extent to which the arboricultural factors may have contributed to the outcome of each operation.