MUCH ABOUT MULCH By: Ted W. Mills, ARS Consulting Rosarian and Judge Like butterflies, mulch comes in many forms — both organic and inorganic. For rosarians, the organic form works best. It would be advisable for rose growers to first realize the value of mulching and then learn of the various forms available on the market. Answers to many mulching questions are to be sought if we really want to grow award-winning roses. Even though mulching is one of the best ways to ensure good roses, too many rose growers omit this valuable phase of rose culture.