Dyna-Gro Mag-Pro, 5 gal

Dyna-Gro Mag-Pro 2-15-4 Blossom Booster Supplement – 5 Gallon

Dyna-Gro Mag-Pro 2-15-4 in the 5-gallon size provides the same bloom-phase blossom booster formulation as the 1-gallon size, in a volume suited for commercial flower production, greenhouse operations, and larger indoor facilities running regular Mag-Pro supplementation during the flowering phase.

Mag-Pro 2-15-4 is a supplement to be used alongside a complete base nutrient program — it provides additional phosphorus, magnesium, and sulfur at levels above what most base formulas supply during bloom, targeting flower color, fragrance, and size. It is not a standalone nutrient formula. The 5-gallon size reduces procurement frequency and per-gallon cost for operations using Mag-Pro throughout the bloom cycle across multiple rooms or growing cycles.

Key Features & Benefits

• 2-15-4 Blossom Booster Ratio — High phosphorus, magnesium, and sulfur for bloom-phase supplementation.
• 5-Gallon Bulk Size — For commercial production and large-scale bloom supplementation programs.
• Supplement, Not Standalone — Use alongside a complete base nutrient formula.
• Enhances Color, Fragrance, and Size — Targets the three most visible quality metrics in flower production.
• Compatible with Any Complete Nutrient — Works with Bloom 3-12-6 or any other complete base nutrient program.
• Liquid Formulation — Mixes easily into reservoir nutrient programs.
• Bloom Phase Only — Apply during the flowering and fruiting phase.

Who Should Use Mag-Pro 5-Gallon

The 5-gallon size is for commercial flower and fruit producers running Mag-Pro as a standard bloom-phase supplement across multiple grows or growing spaces. At typical supplementation rates, a 5-gallon container provides significant production volume.

Blossom Booster Supplements in Commercial Production

Commercial flower and fruit producers often run a tiered nutrient program: a complete base formula providing full-spectrum nutrition, with one or more targeted supplements added during specific phases to push quality metrics beyond what the base formula alone provides. Mag-Pro fits into this structure as the bloom-phase phosphorus, magnesium, and sulfur supplement. In high-value flower production — where color saturation, fragrance intensity, and flower size directly affect market price — the incremental yield improvement from targeted supplementation can have a meaningful commercial impact relative to the cost of the supplement.

Frequently Asked Questions

Is the formula the same as the 1-gallon Mag-Pro?

Yes. The 5-gallon and 1-gallon sizes contain the same Mag-Pro 2-15-4 formula.

What is the N-P-K ratio?

2-15-4.

How is Mag-Pro used?

As a supplement alongside a complete base nutrient formula during the flowering phase.

What crops benefit from Mag-Pro?

Flowering plants, fruiting vegetables, and any crop where bloom size, color, and fragrance are production goals.