perlite in a steel scoop

Hydroponics explained (and what works best)

The Technique At its most basic, hydroponics is growing plants using only nutrients, water and some kind of growing medium. Rather than soil, fans of hydroponics use neutral materials like perlite (made from volcanic rock), vermiculite (a silicate), gravel and coco coir as the media for plant growth. The whole of the media is kept …

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