Supreme Perlite Coarse Horticultural Perlite offers a professional-grade soil amendment ideal for gardeners, growers, and plant hobbyists who require superior drainage and aeration in their potting mixes. This large 4 cubic foot bulk bag provides a valuable supply for greenhouses, nurseries, commercial growers, and home gardeners working with multiple plants, raised beds, propagation setups, or specialty soil blends.
This coarse-grade perlite contains large grains measuring approximately 1/2 inch (13 mm) or larger, making it an excellent choice for plant species that require fast drainage and increased airflow around the roots. Its structure helps prevent soil compaction, improves oxygen availability, and supports healthier, stronger root growth. In addition to its large particles, the blend includes fine and medium grains to help maintain balanced moisture retention—ideal for tropical plants, succulents, aroids, cactus mixes, and high-airflow potting blends.
Made from natural expanded volcanic perlite, this horticultural amendment is clean, sterile, lightweight, and pH neutral. It is completely odorless, non-toxic, non-flammable, and asbestos-free, making it safe for indoor and outdoor gardening environments. Whether you are mixing soil for houseplants, propagating cuttings, refreshing container gardens, or building hydroponic systems, this perlite delivers consistent performance and long-lasting durability.
Supreme Perlite Coarse Perlite is OMRI Listed for organic agriculture, ensuring compatibility with organic growing methods and strict production standards. Its versatile performance and superior drainage properties make it an essential component in any advanced soil mix.
- 4 cubic feet 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
Questions? We’ve Got Answers.
Helpful answers about product features, setup, and more
What are the dimensions of the potting soil?
The potting soil measures 38 x 20 x 8 inches (length x width x height). Use these measurements to confirm the product fits your intended setup before ordering.
How is the potting soil typically used in a garden?
The potting soil is used for outdoor gardening, landscaping, or lawn care tasks such as planting, soil preparation, weed control, or watering depending on the specific product. It is intended for outdoor use in gardens, raised beds, planters, or other growing areas.
What is the capacity of the potting soil?
The potting soil has a 4-cubic feet capacity. This makes it a practical size for organizing the items it is designed to hold without taking up excessive room in your space.
Can the potting soil be used indoors and outdoors?
Yes. The potting soil is suitable for both indoor and outdoor use. It can be placed in areas such as patios, decks, garages, mudrooms, or entryways depending on the space and storage needs.
What finish does the potting soil come in?
This potting soil comes in white. The color provides a neutral finish that coordinates with a wide range of décor styles. It works in both indoor and outdoor settings depending on placement.
Who makes the potting soil?
The potting soil is made by Supreme Perlite. Supreme Perlite produces this item as part of its lineup, and product details such as specifications, included accessories, and warranty terms are set by the brand.
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