Section 14562.
Cal. Food and Agricultural Code - FAC § 14562.
in effect“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.
Source: CA Legislative Counsel Bulk DataURL: https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zipFetched: 6/27/2026