Likely impact of climate change on trees
We are aware of the likely impact of climate change on trees. Average temperatures are likely to rise in the UK this century and it is fairly certain that we shall be subjected to more extremes of wet and dry weather over prolonged periods of time. For these reasons we are undertaking research with newer species and cultivars of trees that are able to cope with such changes. In particular we are evaluating oaks from Mexico, China and California.
Mindful of climate changes mentioned we are also experimenting with the constituents of our tree composts in order to reduce the carbon footprint associated with tree production. We have also improved the quality of the rooting systems of our oaks. Oaks are notorious for producing long tap roots at an early stage of development and grown in pots the tap roots circle round the inside base of the pot. When planted out these trees are constricted in their development. We grow our young trees on wire mesh shelving so that when the roots emerge from drainage holes in the pot they are air pruned. This treatment causes the young oaks to produce a healthy fibrous system that minimizes the check in growth when such trees are planted.