Substrate Type Vermiculite

Vermiculite is a hydrated phyllosilicate mineral commonly used as a growing substrate component in cannabis cultivation. When expanded through heat treatment, it becomes lightweight and porous, offering good water and nutrient retention properties. Breeders and growers often incorporate vermiculite into propagation and seedling mixes to support early root development. Its neutral pH and sterile nature make it useful for controlled germination environments. Vermiculite is frequently combined with other substrates like perlite and peat to create tailored growing mediums.

Breeders working with seed germination and clone establishment often standardize vermiculite-based propagation substrates to ensure consistent early-stage plant development across genetic lines. Substrate choice impacts root morphology and vigor, factors relevant to breeding selection protocols.