Dyna-Gro Mag-Pro, 1 gal

Dyna-Gro Mag-Pro 2-15-4 Blossom Booster Supplement – 1 Gallon

Dyna-Gro Mag-Pro 2-15-4 is a liquid supplement designed to be used alongside any complete nutrient formula as a blossom booster during the flowering and fruiting phase. The 2-15-4 N-P-K ratio features high phosphorus with meaningful levels of magnesium and sulfur — three nutrients that play key roles in reproductive plant development and the production of the compounds responsible for color, fragrance, and flavor.

Mag-Pro is intended as a supplement rather than a standalone nutrient. It does not contain the full spectrum of macro and micronutrients — it provides targeted phosphorus, magnesium, and sulfur to complement a complete base nutrient program during bloom. Apply during the flowering phase alongside Bloom 3-12-6 or another complete nutrient formula to provide the additional blossom-phase support that a base formula alone may not supply at optimum levels.

Key Features & Benefits

• 2-15-4 Blossom Booster Ratio — High phosphorus for flower development; magnesium and sulfur for color and fragrance.
• Compatible with Any Complete Nutrient — Designed to supplement, not replace, a base nutrient formula.
• Enhances Color and Fragrance — Magnesium and sulfur are cofactors in chlorophyll synthesis and the production of aromatic compounds.
• Supports Fruit and Vegetable Crops — Phosphorus and sulfur support fruit set and development in vegetable crops.
• Liquid Formulation — Mixes easily into nutrient solution reservoirs or foliar spray programs.
• One-Gallon Size — For medium to large production with regular bloom-phase supplementation.
• Bloom Phase Application — Use during the flowering and fruiting phase, not during vegetative growth.

Who Should Use Mag-Pro 2-15-4

Mag-Pro is for growers running a two-part or single-part complete nutrient base who want additional blossom-phase support specifically for phosphorus, magnesium, and sulfur. It is appropriate for flower production, fruiting vegetables, and orchids — any crop where bloom size, color intensity, and fragrance are production goals.

The Role of Magnesium and Sulfur in Bloom Quality

Phosphorus gets most of the attention as the bloom-stage nutrient, but magnesium and sulfur are also essential to flowering plant quality. Magnesium is the central atom in the chlorophyll molecule — sufficient magnesium ensures that even as a plant transitions to flowering and begins redistributing nutrients from older leaves, chlorophyll production does not become deficient in developing flower tissue. Sulfur is a component of cysteine and methionine — sulfur-containing amino acids that are precursors to many of the volatile organic compounds responsible for flower fragrance and fruit flavor. High phosphorus alone does not address these requirements, which is why Mag-Pro's formulation combines phosphorus with meaningful magnesium and sulfur levels.

Frequently Asked Questions

How is Mag-Pro used?

As a supplement alongside a complete base nutrient formula during the flowering phase. It does not replace a complete nutrient.

What is the N-P-K ratio?

2-15-4.

Can it be used with Bloom 3-12-6?

Yes. Mag-Pro is designed to supplement complete nutrient formulas like Bloom 3-12-6.

When should I use Mag-Pro?

During the flowering and fruiting phase — not during vegetative growth.

Does it replace calcium or other micronutrients?

No. Mag-Pro provides phosphorus, magnesium, and sulfur only. Use with a complete base formula that provides the full nutrient spectrum.