The desired effects of trees sometimes make it difficult to grow turf. Using trees and shrubs to provide screening and privacy often reduces wind movement and sunlight, and may increase the chance for turfgrass disease. Proper tree selection and placement can help minimize turf loss. Problems Associated with Shade Tree leaves can substantially reduce the amount and quality of sunlight reaching turfgrass.
Plants growing in very dense shade are low in food reserves, resulting in weak plants.
Shade varies with the season, the characteristics of the trees, and their location on the lawn. Maples, oaks, and beeches are examples of trees with dense canopies that intercept most of the light. Some evergreens such as firs and spruces have very dense canopies but affect small areas of turf because of their narrow canopy. Pines, poplars, ashes, and birches produce a more open shade than maples and oaks. Areas with an understory or with trees close together cast very dense shade.