The majority of garden turf types require four to six hours of full sun each day to ensure that they remain healthy and thrive without sun the turf can deteriorate and become less resilient and prone to disease.
There are a number ways to maintain turf that is under shade:
Cut your trees back
You could firstly consider removing some of the surrounding trees to help increase the amount of light through to your garden. Where this is not possible try to move overhanging branches. Many experts believe that it is highly beneficial to have a turf-free zone of at least 1m around the base of the tree to prevent surrounding turf and the tree competing for the same water.
When it comes to mowing your turf you will need to cut turf that is under shade much less frequently and ideally no shorter than 6cm. Where possible it is preferred to keep turf cut as high as 7.5-9cm and always remove the clippings after mowing.
When watering lawn turf under shade it is a good practice to irrigate heavily and infrequently to encourage the trees to root deeply. This will help to reduce the extent that the turf and the trees compete.
Lawn turf covered by shade are best fed during Autumn. Lawn feeds with high potassium (K) are highly beneficial to turf growing in the shade. It is also a good practice to feed lawns in early spring before the tree have begun to leaf.
Where turf is covered by shade, moss will generally grow and flourish over turf as cool, moist and shady conditions are what moss thrives on. Chemical treatments provide a short term solution due to the turf being covered under shade.