“Soilless growing medium” means a medium of an inorganic substance, such as sand or gravel, or in a soilless organic material such as sphagnum peat or pine bark, and periodically watered with a primary or secondary plant nutrient or micronutrient solution, or both.
Cal. Food & Agric. Code § 14562
Definitions
Repealed and added by Stats. 1990, Ch. 504, Sec. 2.
Official source: California Legislative Information. Reproduced from public-domain California statutes; confirm against the official source for the current text. Not legal advice.