How to Make a Putting Green with Synthetic Turf The
To make the base for the putting green, put crushed stone, such as 1/4-inch to 3/8-inch unwashed, crushed limestone, into the excavated area.Spread the crushed rocks out evenly with a rake or shovel. Lightly moisten the rocks with a garden hose and run a plate compacter, lawn roller or gas-powered roller over them to make a smooth, flat base.