Echinocactus grusonii (Golden barrel cacti). Sunset: 11-24; USDA: 9-12. Full sun. Regular water summer. Hardy to 24°F. Grows slowly 3' tall; 4' wide. Yellow flowers.  Origin: Mexico

Echinocactus horizonthalonius var. moelleri (Texas blue barrel) Sunset: 12-24; USDA: 8b-10. Full sun to part shade. Heat tolerant. Little water. Hardy to 14°F. Cylindrical barrel grows to 2" tall; 8" diameter. Origin: Mexico Arizona New Mexico, Texas. These plants are 18 years plus old.

 Ferocactus cylindraceus (Ferocactus acanthodes). Arizona Fire Barrel.  Sunset: 8-24; USDA: 9-10. Full sun. Heat tolerant. Little or no water. Hardy to 20°F. Solitary barrel grows to 6' tall; 16' diameter. Native to Arizona, California, northern Mexico.

Ferocactus wislizenii (Fishhook barrel). Sunset: 8-24; USDA: 9-11. Full sun. Heat tolerant. Little or no water. Hardy to 5°F. Solitary barrel grows to 6' tall; 2' diameter. Native to Arizona, northern Mexico. Shipped bare root.