Amazon.com : Espoma Organic Rose-tone 4-3-2 Organic Fertilizer for all types of Roses and other Flowering Plants. Promotes vigorous growth and blooming. 18 lb. Bag : Lawn And Garden Tool Accessories :
How to Fertilize Roses (with Pictures) - wikiHow
Fertilizing Roses - Kansas City Rose Society
The 6 Best Rose Bush Fertilizers to Grow Amazing Roses - Minneopa Orchards