Age Old Nutrients Haifa BitterMag Magnesium Sulfate - Horticultural Grade - 50 lb

Water-Soluble Magnesium and Sulfur Supply - 50 lb

Magnesium and sulfur gaps can slow vegetative growth and flowering. This horticultural grade magnesium sulfate dissolves fully in water, so you can add both nutrients to a feeding program alongside other fertilizers through the growth cycle.

The 50 lb unit suits growers who use magnesium regularly: commercial operations, larger indoor gardens, and anyone blending or making liquid fertilizers. Home gardeners with small systems may find it more than they need.

Key Features & Benefits

• Fully water-soluble — mixes into nutrient solutions without leaving residue to clog lines.
• Magnesium and sulfur source — supplies two secondary nutrients in one input.
• Horticultural grade — made for plant feeding programs.
• Flexible use — suited to nutrigation, foliar application and fertilizer blending.

Who Should Use Haifa BitterMag Magnesium Sulfate

Growers who run hydroponic or soil-based programs and need a dedicated magnesium and sulfur source. It also fits those who prepare their own fertilizer blends or liquid concentrates.

About Age Old Nutrients Haifa BitterMag

Haifa BitterMag is a horticultural grade magnesium sulfate (Epsom salt) fertilizer sold under the Age Old Nutrients brand. It is a fully water-soluble source of magnesium and sulfur. Age Old commercial products are designed as part of a larger system, and the maker advises consulting its commercial team before use in that line.

Frequently Asked Questions

Q: What nutrients does this supply?
A: It supplies magnesium and sulfur. Both are used by plants during vegetative growth and flowering.

Q: Can I use it in a hydroponic system?
A: It is fully water-soluble and suited to nutrigation, so it fits nutrient solutions. Follow the label directions for rates.

Q: Can I apply it as a foliar spray?
A: Yes, the maker lists foliar application as a suitable use. Follow the label for dilution.

Q: Can I mix it with other fertilizers?
A: The maker says it can be applied in combination with other fertilizers to meet crop needs. Check the label and test compatibility before mixing large batches.

Q: What does fully water-soluble mean?
A: The product dissolves completely in water, leaving no undissolved solids. That makes it easier to use in injectors and liquid concentrates.

Q: Is it a complete nutrient program?
A: No. Age Old commercial products work as part of a larger system that requires multiple products, including calcium nitrate.