Supreme Medium Horticultural Soil Amendment, 4 Cu Ft Bag, 3-Pack

Give your plants the foundation they need with Supreme Perlite, a medium-grade horticultural perlite available in a convenient 3 pack. Each large 4 cubic foot bag delivers consistent, clean volcanic perlite that improves potting soil structure, enhances drainage, and promotes strong root development for both indoor and outdoor gardening. Whether you're mixing potting soil for succulents, cactus, orchids, or tropical plants, this perlite blends seamlessly with coco coir, compost, worm castings, and organic soil amendments to create the ideal growing environment. The medium particle size — around 1/4 inch or 4 to 5 mm — ensures even distribution throughout your mix for reliable aeration and consistent moisture balance across every layer of soil. Supreme Perlite is expanded volcanic rock that is naturally sterile, odorless, pH neutral, and non-toxic, making it a safe and clean choice for seed starting, propagation, and organic gardening. Its lightweight structure creates air pockets in dense soil, preventing compaction and allowing roots to breathe, grow, and access nutrients more effectively throughout the growing season. Each bag holds 102 dry quarts of bulk perlite, giving home gardeners and professional growers the volume needed for large-scale potting, raised beds, lawn topdressing, and specialty plant mixes. Use it alongside bone meal, liquid fertilizer, or coconut coir to build a complete, nutrient-rich growing medium for vegetables, seedlings, and mature plants alike. Supreme Perlite is OMRI Listed for organic agriculture, meaning it meets strict standards for use in certified organic gardening and farming. Trusted by growers across all experience levels, it delivers the same consistent quality bag after bag, whether you're starting seeds indoors, building raised garden beds, or blending a custom outdoor soil mix from scratch.

About this item

• Horticultural Perlite 3 Pack: Medium-grade perlite improves potting soil aeration and drainage for indoor and outdoor plants, seedlings, succulents, and organic gardening mixes.
• Stronger Root Development: Fine and medium particles enhance airflow and moisture retention in soil, supporting healthy root growth in vegetables, orchids, cactus, and tropical plants.
• Natural, Clean & Organic: Expanded volcanic perlite is sterile, pH neutral, odorless, non-toxic, and OMRI Listed for safe use in organic gardening, seed starting, and propagation.
• Bulk 4 Cubic Feet Bag: Each large bag holds 102 dry quarts of consistent medium-grade perlite, ideal for potting mix, coco coir blends, worm castings, and compost amendments.
• Trusted by Growers: Supreme Perlite is OMRI Listed and used by professional and home gardeners for reliable soil improvement, seed starting, and specialty plant propagation.

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