Sol Soils Premium Pumice, 4qt Greenhouse Fans Harvested at peak juvenile stage

Harvested at peak juvenile stage to incapsulate vigorous growth

65 µmol/j    PPFD    1598 PPFD    Spectrum    660nm

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And since it also contains our proprietary pH Perfect Technology

Sol Soils Premium Pumice, 4qt Greenhouse Fans Harvested at peak juvenile stagePremium Pumice Pumice (filtered 3 8in to 1 4in in size) is relatively lightweight volcanic rock used as an amendment in all types of soil. Its porous composition allows it to retain moisture and nutrients during watering, and release them slowly over time as the root system requires. Think of these components as little batteries for your plants. This porous stone ensures nutrient retention while providing just the right amount of air and water to