When it comes to plants and flowers, it's all about the flowers and foliage. For lots and lots of big, beautiful, colourful blossoms, feed your plants with Miracle-Gro Water Soluble Bloom Booster Plant Food 15-30-15. Promotes more blooms (vs unfed plants) on both indoor and outdoor plants. Mixes easily with water. Starts to work instantly. To use, apply with a watering can around the base of the plant until the soil is soaked. For even more convenient feeding on your outdoor plants, use with the Miracle-Gro Garden Feeder and a garden hose.