Vermiculite is a natural mineral often used with another growing medium to solidify a hydroponic growing setup.

Other hydroponic growing mediums include RockwoolClay pelletsCoconut fiber, and Perlite.

Learn about growing hydroponically:

More grow medium definitions:

Grow medium | Soil | Seedling & Cutting soil | Hydroponic | Rockwool | Clay pellets | Coconut fiber | Perlite | Aeroponic

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