Perlite is a gardener’s go-to for loosening compacted soil, improving drainage, and increasing aeration. Medium-coarse horticultural grade perlite is a lightweight, naturally occurring volcanic rock that has been heat-expanded into a porous, absorbent medium—ideal for seed starting, propagation, and custom potting mixes. It works as a soil amendment or as a hydroponic medium—for both home gardeners and commercial growers. Key Features: Perlite (medium-coarse) – ideal for seed starting, propagation, and container gardening Granule size: 1/16" to 5/8" for optimal drainage and aeration Enhances soil structure and prevents compactionSterile, odorless, pH-neutral, and non-toxic Long-lasting—resists breakdown over time CDFA registered - organic input material Benefits: Perlite improves water retention while promoting fast drainage Reduces the risk of root rot and supports healthy root growth Maintains oxygen flow in the soil, essential for plant vitality Perfect for mixing with coco coir, compost, or other soil amendments Does not affect pH—ideal for sensitive plants and hydroponic systems Ideal Uses: Hydroponic medium for indoor or greenhouse setups Seed starting and plant propagation Potting mix for cuttings and young plants Helpful for succulents, cuttings, or any plants sensitive to excess moisture. Container gardening and raised beds Loosening heavy or compacted soils Why Choose This Horticultural Grade Perlite? NorCal Horticultural Grade Perlite is professional-quality and ready to mix into any growing setup. Whether you're cultivating cuttings, improving drainage in pots, or building a hydroponic growing medium, this product delivers reliable performance for both home gardeners and commercial growers. Looking for more ways to grow stronger healthier plants? See our complete collection of growing mediums and soil amendments and soil testing supplies
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