20mm Red Shale
20mm Red Shale is a fine-grained, sedimentary rock composed of clay and other materials. Red Shale is ideal along houses or around trees and shrubs. For an elegant yard, blend our 20mm Red Shale with our 40mm Rundle Rock and/or our 40mm Crystal White Rock.
NOTE: These rocks are not washed rocks, they are still covered in dust from crushing, quarry, & transportation. These rocks can be washed before/after spreading. You could also spread it in the landscape area and let it be washed by the next rainfall.