Horticultural Lava Rock Black 3/8" - .256 Liters

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24540
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Horticultural Lava is used for soil amendments, decorative fillers, and top dressings for terrariums, potted plants, and garden beds. Used by professional growers and hobbyists alike, horticultural lava improves nutrient retention and soil aeration. Furthermore, Horticultural Lava is pH neutral and provides optimal drainage.