RWP Landscape Materials is a major supplier to CalTrans, county government, numerous cities and many, many school districts. It’s hard to drive anywhere in Southern California and not see our blower installation trucks at work. At school yards, city and county parks and most obviously along our California freeways, you’re bound to run into us. No doubt you’ve driven by miles and miles of our “CT MULCH” along our freeway system. Our mulch conforms to CalTrans standards and is approved by CalTrans.