Agave lophantha quadricolor has dark green leaves, with yellow edges and a pale green strip down the middle; the leaves are also accented with dark red teeth lining the sides. This colorful agave grows very slowly. It takes several years for this plant to bloom, and has greenish-yellow flowers on a stalk that can reach 12 feet tall. Agave lophantha is a tropical plant, that is adapted to very hot weather, but can also tolerate low temperatures of 10-15°F.