Your garden deserves the best. Miracle-Gro Bloom Booster Flower Food offers a time-tested formula for growing lustrous, beautiful annual and perennial flowering plants. This special formula is high in phosphorus, so your flowers bloom with vibrant, rich color and last longer. Miracle-Gro Bloom Booster Flower Food is water-soluble; just mix your desired amount of plant food and water as usual to give your garden an instant feast.