Cal. Food & Agric. Code § 5009

“Horticultural product” means those products as stated in Group Number 18 of the Standard Industrial Classification Manual which are grown under cover or outdoors, including bulbs, flowers, shrubbery, florist greens, fruit stock, floral products, nursery stock, ornamental plants, potted plants, roses, seed, sod, fruits, food crops grown in greenhouses, vegetables, and horticultural specialties not otherwise specified.