What is used to fill the joints between stones?
Any number of materials commonly used with natural stone installations are suitable for joint filling with EarthStone patio & hardscape stones. Washed masonry sand, polymeric sand (sand which has a binding agent to assist in stabilization, moisture penetration, weed penetration, and other benefits), or crushed fines are only a few of the possible alternatives. Consult with your local landscape supply center for suggestions in your specific geographic region.