Supreme Perlite 4 Pack Coarse Horticultural Perlite for Potting Soil, 4 Cu Ft

Supreme Perlite Coarse Horticultural Perlite is a professional-grade organic soil amendment for gardeners, greenhouse growers, and plant enthusiasts who demand consistent aeration, drainage, and root support. Available in a 4-pack totaling 16 cubic feet of bulk perlite, this coarse amendment delivers reliable texture and OMRI-certified organic quality for potting soil, coco coir, peat mixes, and compost and worm castings applications.

Coarse perlite works differently than fine or medium grades — the larger grain size of 1/2 inch or greater creates more pore space within your growing medium. This enhanced airflow reaches deep into the root zone, reducing compaction and allowing oxygen to circulate freely, whether you are growing vegetables, orchids, succulents, or starting seeds and starters indoors from scratch.

Drainage and moisture balance work together in this blend. The large grains accelerate excess water drainage and prevent waterlogging that causes root rot, while mixed grain sizes retain enough moisture to keep roots hydrated — ideal for cactus, bone meal mixes, clay soil improvement, and worm castings blends.

The natural expanded volcanic composition makes this one of the cleanest organic gardening amendments available. Completely sterile, pH neutral, and odorless, Supreme Perlite introduces no pathogens into your garden soil, lawn, or raised beds, and blends naturally with peat, dirt, coir, and liquid fertilizer without altering pH.

OMRI Listing for organic agriculture sets Supreme Perlite apart from generic perlite products. Trusted by professional and home gardeners, this certification confirms every bag meets strict organic standards. With 16 cubic feet of bulk perlite across four bags, you have ample supply to blend potting soil, fill raised beds, and support a full grow season of healthy plants, trees, and vegetables.

• 4 Pack 4 cubic feet (16 cubic feet in total) bag of medium horticultural perlite ideal for potting soil, seed starting, propagation, and general organic gardening
• Blend of fine and medium particles provides balanced aeration and moisture retention for healthier root development
• Contains large coarse grains, approximately 1/2 inches (13 mm) or larger, ideal for boosting airflow in potting mixes
• Clean, sterile, lightweight, and pH neutral, making it suitable for a wide range of plant varieties and soil types
• Excellent for mixing into garden beds, hydroponic systems, cactus and succulent soil, tropical blends, and propagation trays
• OMRI Listed for organic use and made from natural expanded volcanic perlite that is odorless, non-toxic, and asbestos-free
• Ideal for professional growers, hobby gardeners, and plant enthusiasts needing a bulk supply of quality perlite
• Material: Perlite
• Color: White/Off-White
• Dimensions (L x W x H): 38 x 20 x 8 inches
• Weight: 24 pounds
• Quantity: 4

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