Horticultural Perlite is a high-performance growing medium for agriculture that improves soil aeration, enhances drainage, and supports stronger root development in both traditional and soilless systems. Norcal Perlite produces clean, consistent horticultural grades through our mine-to-market process, supplying greenhouses, nurseries, hydroponic farms, and commercial growers with perlite they can trust season after season.

With options ranging from standard horticultural grades to moisture-resistant silicone treated perlite, we offer tailored solutions that help growers achieve healthier plants, more uniform growth, and reliable results in any environment.

A popular choice for soil mixers and growers, offering a balance of large particles for drainage and medium to fine particles for aeration and water retention. Its diverse particle size makes it suitable for a wide range of horticultural applications, from soil conditioning to hydroponics.

Similar to Grade #2 but with fewer fines, preferred for a cleaner mix with a focus on drainage. Delivers all the benefits of Grade #2 but with enhanced drainage, making it ideal for growers seeking a more refined substrate.

Tailored for hydroponic systems, this grade comprises larger particles, removing finer sizes for maximum aeration and drainage. Prevents clogging of hydroponic systems and ensures efficient drainage and nutrient renewal, perfect for indoor growing environments.