Miracle-Gro Bloom Booster Plant Food

The NPK ratio represents the percentage of nitrogen, phosphorus, and potassium in the fertilizer. The high middle number—30% phosphorus—is specifically formulated to stimulate bud development and flower production, rather than just leafy green growth.

While it is designed for flowering plants, it can be used on fruiting vegetables like tomatoes, peppers, and squash. The high phosphorus content helps these plants produce more fruit, though you should avoid using it on leafy greens like lettuce or spinach where you want foliage growth rather than blooms.

For best results, apply this solution every 7 to 14 days during the active growing season. Because container plants have limited soil volume and nutrients leach out quickly with regular watering, this consistent schedule ensures they stay well-fed.

Yes, this formula is suitable for a wide variety of annuals, perennials, and flowering shrubs. However, always check the specific needs of your plants, as some varieties prefer lower nutrient levels or specific soil pH ranges.

It is designed to be water-soluble, but it dissolves most effectively in room-temperature water. If you are using cold water, stir thoroughly for a minute or two to ensure the powder is fully incorporated before applying it to your plants.