JH Biotech - Fulmag | Chelated Magnesium

Brand: JH Biotech

Fulmag

Fulmag is a liquid chelated magnesium plant nutrition product that pairs magnesium with fulvic and organic acids extracted from leonardite. It contains chelated magnesium used to enhance nutrient uptake by plants and promote plant growth, and helps prevent and correct magnesium deficiencies. Magnesium is chelated with citric acid and combined with 3.0 percent leonardite-derived organic acids.

Fulmag can be applied by soil, hydroponic, and/or foliar application on all crops. For hydroponics use one half to 1 teaspoon per gallon of final solution. For foliar use 1 to 2 teaspoons per gallon of water or fertilizer solution. For soil use 1 to 2 teaspoons per gallon of water or fertilizer solution. For turf and lawns use 1 fl oz per 400 sq ft, then water into the soil. Shake well before using.

Available Options

• 2.5 Gal (sold in packs of 2)
• 55 Gal Drum
• 250 Gal Tote

Key Features

• Guaranteed 0.5 percent chelated magnesium
• Magnesium chelated with citric acid
• Contains 3.0 percent organic acids derived from leonardite
• Helps prevent and correct magnesium deficiencies
• Enhances nutrient uptake by plants and promotes plant growth
• Liquid formulation for flexible soil, hydroponic, or foliar delivery
• Labeled for use on all crops
• Weight per gallon 10.8 lbs
• Classified as non-hazardous under OSHA HazCom

Ideal Applications

• Correcting and preventing magnesium deficiency in field and row crops
• Hydroponic nutrient solutions at one half to 1 teaspoon per gallon
• Foliar feeding programs alone or tank mixed into fertilizer solutions
• Soil and fertigation applications for all crops
• Turf and lawn magnesium supplementation

Product Note

Fulmag carries no OMRI, CDFA, or WSDA organic input listing.

State Registration

Fulmag is a plant nutrition product. It is not a pesticide and no pest control claims are made for it. Fertilizing materials must be registered in most states before they may be distributed there.

Per the manufacturer price list dated 7/22/2026, Fulmag is not registered for sale in: AR, IL, IN, KY, ME, MD, MS, MT, NH, ND, OR, RI, UT, VT, WA, WY. Buyers outside those states should confirm current registration status before ordering.