Effects of wind on tree growth

Wind has a huge effect on tree growth.  As the tree grows and puts out new shoots the wind, particularly near the sea, blows salt laden air over the tree.  The salt and force of the wind burn the new shoots. The only new growth is on the sheltered side of the tree.  This is a hawthorn tree near the coast in Donegal. 

Look at the shape of the trees near the sea on the Skerries Road.

This is called "wind pruning".