Altman Specialty Plants, 10040 Circle R Dr, Escondido, CA 92026, US

Olive Hill Greenhouses has been located in Fallbrook, Calif., since 1973. It has grown into one of the largest interior plant producers in California. The company s production facilities total 760,000 square feet. Greenhouse features include galvanized steel exterior walls, inside insulation, computer control of misting, propagation, environment and shade curtains. Olive Hill Greenhouses grows an assortment of plants that include bromeliads, orchids, pothos, aglaonema, croton, hedera, dieffenbachia, nepthytis, philodendron, spathiphyllum, homalomena and Kimberly Queen ferns. The company has its own trucks to deliver plants throughout Southern California and uses common carriers to ship plants to other areas. Two-thirds of the company's production is sold within California, and one-third is shipped out of the state.