All gardens need some wind to circulate the air in them, but there is a great difference between a gentle breeze and a strong gusting gale. Strong winds can do an enormous amount of damage and their strength needs to be reduced before they enter your garden.

Water loss is the single most important effect of wind on plants. Usually, water moves up through a plant at a slow steady pace. Strong winds will dry the leaves as soon as the water reaches them, faster than it can be replaced. Plants can appear to be suffering from drought even if the soil is damp. This is especially harmful in winter when the water may be frozen and trapped in the soil. Evergreens are particularly vulnerable and should be gently sprayed with water to keep them damp.
Constant wind from a single direction can cause lopsided or stunted growth. Leaves and stems may be broken off and the growing tips on the exposed side are constantly pinched back. This is particularly noticeable on coastal sites where there is often a constant wind off the sea. Foliage and tips can also be damaged by being rubbed together.
Wind reduces the temperature and can turn a cold day into a potentially harmful one for tender plants. » Read more: How to Protect Your Garden from Wind Damage