- Welcome to Harwood Landscaping Products, Inc. Harwood Landscaping offers the largest selection of landscaping products in the area. Our inventory ranges from pea gravel to large landscaping stone. Harwood Landscaping Products is located at the corner of Route 2 and Old Solomons Island Road in Harwood, Maryland. Visit our immense stoneyard and browse our large inventory. Contact Us: Harwood ...harwoodlandscaping.com