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

Grow More® Super Bloomer 15-30-15 (3 lb Jar) — Chelated Iron Bloom Formula for Larger, More Vibrant Flowers

Grow More® Super Bloomer 15-30-15 is a water-soluble bloom fertilizer designed to push flowering plants to their full potential, delivering a high-phosphate NPK formula (15% nitrogen, 30% phosphate, 15% potassium) enriched with chelated iron for improved color and overall plant health. The elevated phosphate concentration directly supports the energy demands of flower development — driving bud set, flower size, and color intensity — while balanced nitrogen and potassium maintain plant structure, water regulation, and overall vitality through the blooming cycle.

Chelated iron is included to address one of the most common issues in flowering plants: iron deficiency-driven interveinal chlorosis, which causes leaves to yellow between veins and reduces the plant's photosynthetic capacity and overall vigor. By delivering iron in a chelated form that remains plant-available across a range of soil pH values, Super Bloomer 15-30-15 supports both the nutritional and micronutrient needs of blooming plants simultaneously. Suitable for roses, annual and perennial flowers, shrubs, and ornamental plants in container and in-ground growing environments.

Key Features & Benefits

• 30% Phosphate for Bloom Enhancement: High available phosphate (P₂O₅) drives ATP energy production, bud initiation, flower set, and color intensity — the core phosphate-driven processes that produce larger, more vibrant blooms in flowering plants and shrubs.
• Chelated Iron for Color and Vigor: Iron delivered in chelated form remains plant-available across varying soil pH levels, preventing interveinal chlorosis and supporting healthy, dark-green foliage that complements vivid bloom color.
• Balanced 15% N and K: Equal nitrogen and potassium provide steady macronutrient support for stem strength, water regulation, and continued plant vigor through the full blooming cycle without driving excessive vegetative growth.
• Broad Ornamental Compatibility: Formulated for roses, azaleas, gardenias, annuals, perennials, flowering shrubs, and container ornamentals — any flowering plant that benefits from high-phosphate bloom nutrition.
• Water-Soluble Convenience: Dissolves readily for flexible application as a root drench or foliar feed in soil and container growing environments.

Who Should Use This

Super Bloomer 15-30-15 is ideal for home gardeners, greenhouse growers, and professional horticulturalists who want to maximize bloom size, color, and flower production on ornamental plants, roses, annual flowers, and specialty shrubs. It is particularly beneficial when growing conditions or high-pH soil cause iron-related chlorosis symptoms, and for growers who want a single bloom formula that addresses both phosphate nutrition and micronutrient needs in one product.

Compatibility

Compatible with soil and container growing environments. Mix at the recommended rate and apply as a root drench during watering. Can also be used as a foliar spray at a dilute concentration. Apply throughout the blooming cycle and during the transition from vegetative growth to flowering. Not recommended as a sole nutrient for high-production hydroponic systems — best suited for soil and container-grown ornamentals.

Frequently Asked Questions

What does chelated iron do for flowering plants?

Iron is essential for chlorophyll production and numerous enzymatic processes in plants. Chelated iron is bound to an organic molecule (chelate) that keeps the iron soluble and available to plants across a wider pH range than non-chelated iron forms. This prevents the iron lockout that commonly occurs in alkaline or neutral soils, where non-chelated iron becomes insoluble and unavailable to plant roots, causing yellowing leaves and reduced vigor.

How does high phosphate improve bloom quality?

Phosphate (P₂O₅) is the macronutrient most directly linked to reproductive development and energy transfer (ATP synthesis) in plants. During the bloom phase, phosphate availability influences bud set, flower size, stem strength, and color intensity. High-phosphate formulas like Super Bloomer 15-30-15 ensure that phosphate is not the limiting factor during the energy-intensive bloom cycle.

Can I use Super Bloomer for edible flowering crops?

Yes, Super Bloomer 15-30-15 can be used on edible crops. Apply at the recommended rate and follow standard pre-harvest intervals for treated food crops. The chelated iron and balanced NPK are beneficial for 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 intervals per the label recommendation during the blooming phase. Consistent application through the full bloom cycle produces the best results. Reduce frequency during dormancy or non-flowering periods and resume at the onset of the next bloom cycle.