Miracle-Gro Water Soluble Bloom Booster Flower Food, 5.5 lb — Fast-Acting Feed for Bigger, More Colorful Blooms

Miracle-Gro Water Soluble Bloom Booster Flower Food is a fast-dissolving fertilizer designed to increase the number and color intensity of flowering plants when applied every 7–14 days.

If you want more abundant, vivid blooms from garden beds, containers, and porch plants, this water-soluble formula makes feeding simple: dissolve the powder in water and soak the soil at the base of each plant. The 5.5 lb. tub treats up to 2,200 square feet and works with a wide variety of annuals, perennials and roses. Use smaller doses for houseplants and larger measures for outdoor beds, or apply with a garden feeder for convenience.

How quickly will I see results after feeding my plants?

Because the product dissolves in water and is applied directly to the soil, plants begin accessing nutrients immediately. Visible differences in bloom production and color intensity can appear within a few feeding cycles, depending on plant type and growing conditions.

• Feeds roots directly for quicker uptake
• Reapply every 7–14 days for continuous support
• Indoor and outdoor rates provided for proper dosing

What types of flowers and situations is this suitable for?

This formula is made for both container and in-ground flowering plants: annuals, perennials, roses, hydrangeas, dahlias, petunias and more. It’s also appropriate for indoor flowering specimens when mixed at the lower household rate.

• Safe for common garden flowers and shrubs listed on the label
• Works in pots, hanging baskets, beds and borders
• Compatible with garden feeder jars for large areas

How do I mix and apply the bloom booster correctly?

Follow the label measurements for reliable results: use the included scoop for indoor watering can mixes and the outdoor teaspoon measure for garden applications. Always dissolve before applying and water into the soil at the plant base to reach root zones rather than foliage.

• Indoor: 1/2 teaspoon per gallon of water every two weeks
• Outdoor: 1 1/2 teaspoons per 1.5 gallons of water every 7–14 days
• Use a Miracle-Gro Garden Feeder jar for larger outdoor coverage

How much area does one 5.5 lb. container cover?

A single 5.5 lb. tub treats approximately 2,200 square feet when applied as directed, making it a practical choice for medium-sized gardens. Coverage will vary with application frequency and plant spacing, so plan dosing to match your landscape needs.

• Approximate coverage: 2,200 sq. ft. per 5.5 lb. container
• Adjust quantity for denser plantings or more frequent feedings
• Garden feeder jars can extend convenience and consistency

Who is this for: Gardeners who want an easy, repeatable feeding routine to promote more blooms and stronger color in flowering plants will find this product useful. It’s well suited to home gardeners who manage mixed beds, containers, hanging baskets, or indoor flowering plants and prefer a water-soluble option for quick root uptake and flexible application methods.

Ingredients

Derived from Urea, Ammonium Phosphate, Urea Phosphate, Potassium Chloride, Boric Acid, Copper Sulfate, Iron EDTA, Manganese EDTA, Sodium Molybdate, and Zinc Sulfate.