Vermiculite

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Vermiculite is heat expanded mica. It is often used as a starting medium for seeds and cuttings. Sometimes referred to as a soilless medium, a feature that makes it free of disease, vermiculite has no nutritional value, so some sort of liquid fertilizer should be used when propagating plants with using this method.As a additive to potting soil, vermiculite helps create a friable, light, mixture