SuperThrive Mag-Pro 2-15-4 Blossom Booster - 1 Qt

Phosphorus, Magnesium and Sulfur for Flowering - 1 Qt

Flowering places heavy demands on a plant, and a base nutrient formula alone may not cover them, especially when you feed with reverse osmosis, rain or de-ionized water. Mag-Pro adds phosphorus, magnesium and sulfur to your existing program, and the nutrients are immediately available to the plant. Its 2-15-4 analysis shows a phosphorus-forward profile.

The 1 Qt bottle suits hobbyists trying a blossom supplement for the first time and small indoor growers who dose by the teaspoon. Larger operations running injectors will likely use it up quickly and may want to plan for repeat orders.

Key Features & Benefits

• 2-15-4 nutrient analysis — a high phosphorus share for the flowering stage.
• Magnesium and sulfur included — fills secondary nutrient gaps that purified water can leave.
• Immediately available nutrients — plants can access them when flower formation begins.
• Several application methods — rates for hand watering, recirculating hydroponic systems and irrigation injectors.
• Works with a complete nutrient formula — use it as a supplement, not a replacement.

Who Should Use SuperThrive Mag-Pro

Growers who run a complete nutrient program and want extra phosphorus, magnesium and sulfur during flowering will find it useful. It also suits those watering with reverse osmosis, rain or de-ionized water, in soil, soilless or hydroponic setups.

About SuperThrive Mag-Pro

SuperThrive Mag-Pro is a liquid plant supplement with a 2-15-4 analysis. It contains 2.0% total nitrogen, 15.0% phosphate (P2O5), 4.0% potash (K2O), 2.0% magnesium, 2.0% manganese and 1.5% sulfur. This 1 Qt bottle is sold individually.

Frequently Asked Questions

Q: Can Mag-Pro replace my base nutrients?
A: No. It is a supplement and should be used alongside a complete nutrient formula. It adds phosphorus, magnesium and sulfur but does not supply a full nutrient range.

Q: How much do I use when hand watering?
A: For continuous feeding at every watering, mix 1/4 to 1/2 Tsp. per gallon of water. Measure carefully and adjust to your plants and base formula.

Q: What is the rate for a recirculating hydroponic system?
A: Use 1-2 Tsp. per gallon of water in recirculating systems. Check your reservoir regularly and follow the label for other system types.

Q: Can I use it with an irrigation injector?
A: Yes. For continuous feeding, mix 4 to 8 fl oz per gallon of water to make an injectable concentrate. Match this to your injector ratio as described on the label.

Q: What does 2-15-4 mean?
A: The three numbers show the percentage of total nitrogen (N), phosphate (P2O5) and potash (K2O). Mag-Pro contains 2.0% nitrogen, 15.0% phosphate and 4.0% potash.

Q: Why add it if I use purified water?
A: Reverse osmosis, rain and de-ionized water contain very little dissolved mineral content. Mag-Pro can help replace magnesium and sulfur that such water lacks.