“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.
(Repealed and added by Stats. 1990, Ch. 504, Sec. 2.)
Last modified: October 25, 2018