Ada Perry's Magic Formula is the premier rose supplement on the market!  Developed by Walter Andersen Nursery horticulturalist, Ada Perry, back in the '50s it has been a staple of rose growers in San Diego for decades!  Several years ago Walter Andersen Nursery added Humic Acid to the formulation to help build great soil in your rose garden as well.  Typically used when planting bare root roses in winter it is also used at winter and summer pruning along with your favorite rose food.  Ada Perry's Magic Formula also makes a great soil conditioner for general use in landscapes and vegetable gardens.  It has a N-P-K of 2.5-2.5-1 and includes Magnesium, Sulfur, Iron, Manganese and Zinc.  Buy a 5 pound box today and see why champion rose growers have been using it for so long!  FREE PRIORITY MAIL SHIPPING TO CONTINENTAL U.S. INCLUDED IN PRICE!