Perlite is a type of volcanic rock that is very porous, encourages water drainage and allows oxygen to reach the roots to increase plant growth.
Uses:
- Used in soil mixes to improve aeration (very lightweight material comprised of tiny air compartments)
- Aid in water retention
- used for propogating root cuttings
Benefits:
- Ideal for clones, as the leightweight structure of the perlite means roots can penetrate easily
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