Grow More® Super Bloomer 15-30-15 — 3 lb Jar

Chelated-Iron Bloom Formula Built to Push Flower Size and Color Together

Pushing bloom size with straight phosphorus alone ignores a problem that shows up on the same plants constantly: iron-deficiency chlorosis that yellows leaves and undercuts the very photosynthetic capacity flowering depends on. Grow More Super Bloomer 15-30-15 tackles both at once, pairing a high-phosphate 15-30-15 NPK ratio that drives bud set, flower size, and color intensity with chelated iron that stays plant-available across a range of soil pH.

Balanced nitrogen and potassium round out the formula for stem strength and water regulation, and the 3 lb jar suits roses, annual and perennial flowers, shrubs, and container ornamentals throughout the blooming cycle.

Key Features & Benefits

• 30% Phosphate for Bloom Enhancement: High available phosphate drives the ATP energy production, bud initiation, and color intensity behind larger, more vibrant blooms.
• Chelated Iron for Color and Vigor: Stays plant-available across varying soil pH, preventing interveinal chlorosis and supporting dark-green foliage that complements bloom color.
• Balanced 15% N and K: Steady macronutrient support for stem strength and water regulation without driving excess vegetative growth.
• Broad Ornamental Compatibility: Formulated for roses, azaleas, gardenias, annuals, perennials, and flowering shrubs.
• Water-Soluble Convenience: Dissolves readily for use as a root drench or foliar feed.

Who Should Use This

Home gardeners, greenhouse growers, and professional horticulturalists who want to maximize bloom size, color, and flower production on ornamentals, roses, and specialty shrubs are the direct fit — particularly where high-pH soil causes iron-related chlorosis alongside the bloom-nutrition need.

About Grow More Inc.

Grow More Inc., founded in 1918 as National Chemical Company in Hollywood, California and now headquartered in Gardena, California, positions Super Bloomer as its chelated-iron ornamental bloom specialist.

Frequently Asked Questions

What does chelated iron do for flowering plants?

Chelated iron is bound to an organic molecule that keeps it soluble and available across a wider pH range than non-chelated forms, preventing the iron lockout common in alkaline or neutral soils that otherwise causes yellowing leaves and reduced vigor. Keeping iron available through bloom supports the chlorophyll production that fuels the plant's own flowering energy needs.

How does high phosphate improve bloom quality?

Phosphate is the macronutrient most directly linked to reproductive development and ATP energy transfer. During bloom, phosphate availability influences bud set, flower size, stem strength, and color intensity, so a high-phosphate formula keeps phosphate from being the limiting factor.

Can I use Super Bloomer for edible flowering crops?

Yes, apply at the recommended rate and follow standard pre-harvest intervals for treated food crops. The chelated iron and balanced NPK benefit vegetable crops that are flowering or setting fruit.

How often should I apply Super Bloomer during the blooming cycle?

Apply at every watering or at regular label-recommended intervals during the blooming phase for the best results, then reduce frequency during dormancy and resume at the onset of the next bloom cycle. Always follow label dilution rates rather than increasing frequency beyond what's recommended.