5 Renewable Soilless Grow Media
All gardeners need to consider the environmental impacts that they may have by choosing one method or substrate over another. Many staples of hydroponics and soilless container growing come from strip mines that destroy natural habitats like rain forests or peat bogs.
Media such as perlite, vermiculite and expanded clay pellets (hydroton) all come from strip mines. Strip, or surface, mining involves moving thousands of tons of earth to dig out the desired mineral. These mines use large amounts of energy and often heavily pollute their surroundings, leaving behind large areas of barren bedrock unfit for any sort of cultivation.
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