California Code
ARTICLE 2 - Definitions
Section 14563.

14563. “Specialty fertilizer” means packaged commercial fertilizer labeled for home gardens, lawns, shrubbery, flowers, and other similar noncommercial uses. These products may contain less than 5 percent nitrogen (N), available phosphoric acid (P2O5), or soluble potash (K2 O), singly or collectively, detectable by chemical methods.

(Repealed and added by Stats. 1990, Ch. 504, Sec. 2.)