Roses are plants that really benefit from fertilizing. Joyusgarden blog presents one of the best ways to fertilize roses in a natural way, you’ll need 1 part rose & flower fertilizer, 1 part alfalfa meal, 1/2 part composted chicken manure or worm castings. Use approximately 1 to 2 cups for a large bush, 1 to 1 1/2 cups for a medium bush and 1/2 to 1 cup for smaller bushes. If you mix up too much, don’t worry – just cover it up and save until the next feeding. Organic fertilizers take longer to work but because they break down slower, are effective for a much longer period of time, so make your roses amazing!