Cz Garden Supply Magnesium Sulfate Epsom Salt Fertilizer 19 lb — Water-Soluble Magnesium & Sulfur for Hydroponics and Gardens

This 19 lb resealable pouch of Magnesium Sulfate (Epsom Salt) from Cz Garden Supply is manufactured in the USA and OMRI listed for organic use. It dissolves quickly in water and is designed for greenhouse-grade performance across hydroponics, soil, coco, and drip systems. The formula supplies 10% magnesium and 13% combined sulfur to help plants maintain healthy leaf color and efficient nutrient uptake when used as part of a balanced feeding program.

How does this Magnesium Sulfate help my plants?

Magnesium is a core component of chlorophyll and supports photosynthetic activity, while sulfur is essential for protein formation and enzyme function. Cz Garden’s high-purity Epsom Salt provides these elements in a fully water-soluble form, ideal for quick uptake through roots and foliar sprays.

• Provides 10% elemental magnesium for chlorophyll synthesis.
• Supplies 13% combined sulfur to support amino acid and enzyme production.
• Rapidly dissolves for fast availability in hydroponic and soil solutions.
• OMRI listed for organic-compatible applications.

What systems and plants can I use this with?

The product is formulated for flexibility: suitable for hydroponic setups (DWC, NFT, flood & drain), drip irrigation, soil, coco coir, tower gardens, and container collections. It’s safe for vegetables, fruits, flowers, and medicinal herbs when used according to recommended feeding practices.

• Hydroponics: DWC, NFT, flood & drain, and reservoirs.
• Soil and container gardening, including raised beds and Earthbox systems.
• Indoor houseplants, flowering ornamentals, vegetables, and herbs.
• Foliar sprays or root drench applications as a supplement.

How do I use and store the Cz Garden Epsom Salt?

Follow the included 3-2-1 feeding schedule or your crop-specific nutrient plan; dissolve the appropriate dose in water before adding to a reservoir or applying to the root zone. The heavy-duty resealable pouch makes measuring and storage simple while protecting product quality between uses.

• Mix thoroughly until fully dissolved for even distribution in reservoirs.
• Use as a supplement in weekly or as-needed feedings per crop requirements.
• Resealable packaging prevents moisture ingress and maintains purity.
• Manufactured in the USA to ensure consistent, greenhouse-grade quality.

Will this leave residues or harm irrigation equipment?

Cz Garden Supply emphasizes greenhouse-grade, water-soluble magnesium sulfate to minimize problematic residues. Unlike some lower-grade salts, this product is formulated to dissolve cleanly and reduce buildup on emitter tips and pump components when used responsibly.

• High-purity formula dissolves without oily or waxy films.
• Regular reservoir maintenance and flushing limit any mineral buildup.
• Compatible with standard irrigation emitters and pumps when diluted properly.
• Follow equipment manufacturer guidelines for concentration limits.

Who is this for: Cz Garden Magnesium Sulfate Epsom Salt is aimed at home gardeners, greenhouse growers, and hydroponic hobbyists who need a reliable magnesium and sulfur supplement. It suits organic growers seeking an OMRI-listed option, commercial growers wanting greenhouse-grade solubility, and anyone who prefers a resealable, made-in-USA fertilizer package to support greener leaves and steadier nutrient performance.

Features:

• Premium water-soluble fertilizer with 10% magnesium and 13% sulfur.
• OMRI listed and manufactured in the USA.
• Compatible with hydroponics, soil, coco, and drip systems.
• Heavy-duty resealable pouch for easy pouring and storage.
• 321 feeding schedule guidance for flexible application.