Succulent varieties
Agave bracteosa (Squid Agave). USDA: 9-12. Full sun to light shade, heat tolerant. Regular water during summer, keep dry winter. Hardy to 18° F. Usually solitary, grows to 18" tall and 18" wide. Origin: Mexico.
Agave deserti (Sunset: 10-24; USDA: 8-10). Full sun. Heat tolerant. Hardy to 18°F. Grows to 5' tall - 4' wide. Infrequent water. Native to Arizona, eastern Calif., Mexico.
Aloe 'Blue elf' Best in filtered sun. Heat tolerant. Hardy to 24°F. Little water. Compact aloe grows to 1-2' tall; 1-2' wide. Native to South Africa.
Aloe camperi (USDA: 9b-10). Best in filtered sun. Heat tolerant. Hardy to 28°F. Little water. Clumping aloe colony grows to 3' tall; 6' diameter. Native to Africa.
Aloe crosby prolific. (USDA: 9b-10). Filtered sun. Heat tolerant. Hardy to 30°F. Little water. Grows to 8" tall; 1' wide. Native to Africa.
Aloe cryptopoda (USDA: 9b-11). Light shade to full sun. Heat tolerant. Hardy to 24°F. Little water. Generally solitary stemless rosette. Grows to 3' tall; 2' wide. Native to Africa.
Aloe nobilis (Gold tooth aloe) Sunset: 8,9,12-24; USDA: 9-11. Light shade. Heat tolerant. Hardy to 24°F. Little water. Clustering rosettes, grows to 1' tall; 1' wide. Origin: Africa.
Aloe rudikoppe 'Little Gem'. USDA: 9-11. Light shade in Phoenix. Heat tolerant. Hardy to 26° F. Low growing, clustering rosettes grows to 12" tall. Little water. Origin: South Africa.
Aloe saponaria (Tiger aloe). Sunset: 8,9,12-24; USDA: 9-11. Light shade. Heat tolerant. Hardy to 24°F. Little water. Clustering rosettes, each plants grows to 8" tall; 10" wide. Origin: Africa.
Aloe striata
Aloe vera barbadensis 'medicine plant' (Orange flowers). Sunset: 8,9,11-24; USDA: 9-10. Full sun to light shade. Heat tolerant. Hardy to 23°F. Clumping rosettes grows to 2' tall. Native to Africa.
Aloe vera barbadensis 'medicine plant' (Yellow flowers). Sunset: 8,9,11-24; USDA: 9-10. Full sun to light shade. Heat tolerant. Hardy to 23°F. Clumping rosettes grows to 4' tall. Makes a great landscape plant. Widely used for medicinal purposes. Origin: Africa.
Euphorbia antisyphilitica (Candelilla, Wax plant). Full sun. Hardy to 25°F. Evergreen shrub to 3' tall, mostly leafless stems. Little water. Native to Chihuahuan desert, west Texas, Mexico.
Gasteria verrucosa (USDA: 10) Shade. Heat tolerant. Hardy to 28°F. Clumping rosettes grows to 1' tall. Little water. Origin: South Africa.
Haworthia fasciata (USDA: 10-11). Shade. Heat tolerant. Hardy to 28°F. Clumping rosettes grows to 6" tall; 1' wide. Regular water in summer. Native to South Africa.
Pedilanthus macrocarpus (Lady slipper) USDA: 9-10. Full sun to light shade. Little to moderate water. Hardy to 25°F. Evergreen bush to 6' tall; 6' wide. Origin: Mexico (Sonora, Baja California).
Portulacaria afra (Elephant bush), Sunset: 8,9,12-24; USDA: 10. Light shade in Phoenix. Heat tolerant. Moderate water. Hardy to 30°F. Small tree or succulent shrub to 8' tall. Origin: South Africa.