Turf, both above and below the soil surface, has very little biomass in comparison to larger perennials, shrubs and trees. The shallow root system of turf prevents the soil from maintaining its permeability (ability to soak up water), and in some cases may result in the formation of an impermeable clay shelf below the grass. Large expanses of irrigated and mowed lawn contribute to significant amounts of runoff that can contain pesticides and fertilizers.
Replace turf with lawn alternatives such as trees, shrubs, perennials and/or prairie gardens along with optional soil amendments and mulching to more effectively manage rainwater in your yard.
Click on a photo to open a larger version in a new window.