There are 60 or more trees in Britain that are native, meaning tree species, subspecies or hybrids that have established themselves without the hand of man. Yet only 35 are widespread meaning that the palette is actually quite limited, particularly when the full range of benefits from woodlands are considered, together with threats from environmental change.
Remember to prune your walnut trees at this time of year. Traditionally walnut trees are best pruned on or around St. Swithin’s day.
My forestry research work took me to the USA and Italy looking for the best ways to grow walnut trees for timber. Foresters in both countries pioneered the planting of nitrogen-fixing trees or shrubs with hardwood trees, where their ability to improve soil fertility for ‘hungry’ species, such as walnut,