Five acres of native and exotic cacti and succulents; among thousands of plants is the largest nursery-grown cactus in Texas, a 25-foot specimen of Pachycereus pringlei, native to small area of Baja California. Many rare species propagated here from seed. Cactus shop and gardens open Sun. - Fri.; guided group lecture tours by appointment on Sunday. North of Alamo 0.7 mile on F.M. 907 at F.M. 495.