Glossary
Pumice
A porous volcanic rock used in soil mixes. Heavier than perlite, does not float or crumble, and generally the preferred choice, growers say.
Words that go with it
- Inorganic (in a soil mix)The mineral, non-rotting part of a soil mix — pumice, lava rock, perlite, grit.
- PerliteThe white popcorn-like mineral in bagged potting mixes, used to make soil drain faster.
- AerationAir spaces in the soil.
- Organic (in a soil mix)Growers call it the part of a soil mix that was once alive — compost, humus, worm…
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Learned from the sanpedrocact.us community wiki (CC BY-NC 4.0) and from @sanpedromastery6262 on YouTube.
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