Ferocactus macrodiscus. Sunset: 8-24; USDA: 9b-10. Hardy to 25°F. Full sun to light shade. Hardy to 25°F. Water sparingly summer, keep dry winter. Solitary barrel with a bluish green stem grows to 8-12" tall. Pink and white striped flowers. Origin: Mexico.

Ferocactus peninsulae. USDA: 9b-11. Hardy to 25°F. Full sun. Hardy to 25°F. Water sparingly summer, keep dry winter. Usually solitary barrel up to 3' tall, 18" diameter. Yellow flowers with orange red stripes. Thick red spines. Origin: Southern Baja California Mexico.

Ferocactus pottsii v. alamosensis. USDA: 9b-11. Hardy to 25°F. Full sun to light shade.  Hardy to 25°F. Water sparingly summer, keep dry winter. Usually solitary barrel up to 3' tall, 18" diameter. Yellow flowers. Origin: Mexico.

Ferocactus rectispinus. USDA 9b-11. Full sun, heat tolerant, needs little water. Hardy to 24°F. Solitary barrel grows to 6'tall. Long straight spines. Flower color varies from orange, red-orange, and yellow. Origin: Baja Mexico.

Ferocactus recurvus. Sunset: 11-13; USDA: 9b-11. Full sun to light shade, heat tolerant, needs little water. Hardy to 25°F. Pinkish purple or yellow flowers. Origin: Mexico.

Ferocactus reppenhageni

Ferocactus robustus. USDA: 9-12. Hardy to 20°F. Full sun.  Hardy to 25°F. Water sparingly summer, keep dry winter. Clumping barrel cactus, can accumulate hundreds of heads. Yellow flowers. Origin: South central Mexico.

Ferocactus santa-maria. (Ferocactus townsendianus santa-maria). USDA: 9b-12. Hardy to 25°F. Full sun.  Hardy to 25°F. Water sparingly summer, keep dry winter. Solitary grows to 2' tall. Yellow flowers. Origin: Southern Baja California Mexico.

Ferocactus schwarzii. Sunset: 8-24; USDA: 10-11. Hardy to 25°F. Full sun.  Hardy to 25°F. Water sparingly summer, keep dry winter. Solitary grows to 32" tall, 20" diameter. Yellow flowers, golden spines. Origin: Northern Sinaloa Mexico.

Ferocactus species mix. (Barrel cactus). An assortment of several ferocactus varieties, including: diguetii, cylindraceus, herrerae, latispinus, peninsulae, rectispinus, schwarzii, wislizenii and others. Ferocactus are one of the easiest cacti to germinate and grow. Nice flowers from yellow to red, and usually colorful fruit.

Ferocactus stainesii. USDA: 8b-11. Hardy to 25°F. Full sun. Little to moderate water. Clumping barrel grows to 8' tall. Yellow to red flowers. Origin: Central Mexico.

Ferocactus stainesii v pilosus. USDA: 8b-11. Hardy to 25°F. Little to moderate water. Clumping barrel cactus up to 8' tall. Yellow to red flowers. Origin: Central Mexico.

Ferocactus stainesii v pringlei. USDA: 8b-11. Hardy to 25°F. Little to moderate water. Clumping barrel cactus up to 8' tall. Yellow to red flowers. Origin: Central Mexico.

Ferocactus townsendianus. Sunset: 8-24; USDA: 9-10.  Hardy to 25°F. Little to moderate water. Solitary barrel cactus to 20" tall. Deep orange to pale yellow flowers with darker orange mid-stripes. Origin: Baja California Mexico.

Ferocactus viridescens

Ferocactus viridescens from La Jolla CA. USDA: 9b-11.  Hardy to 25°F. Little to moderate water. Solitary barrel  6 to 18" tall; 8 to 14" wide. Yellow-green flowers. Seeds collected in San Diego Co. Santee -- Costal form --

Ferocactus viridescens. USDA: 9b-11.  Hardy to 25°F. Little to moderate water. Solitary barrel  6 to 18" tall; 8 to 14" wide. Yellow-green flowers. Seeds collected in San Diego Co. Santee -- inland form --

Ferocactus viscainensis. USDA: 9b-11. Hardy to 25°F. Full sun.  Hardy to 25°F. Water sparingly summer, keep dry winter. Usually solitary barrel up to 3' tall, 18" diameter. Yellow flowers with orange red stripes. Origin: Southern Baja California Mexico.

Ferocactus wislizenii (Fishhook barrel). Perfect seed for the beginner. Sunset: 8-24; USDA: 9-11. Full sun. Heat tolerant. Little or no water. Hardy to 5°F. Solitary barrel grows to 8' tall; 2' diameter. Orange / red flowers, large yellow fruit. Origin: Arizona, northern Mexico. (Seeds collected near Tucson)

Frailea alagretassa

Frailea asterioides. USDA: 9b-11.  Hardy to 25°F. Little water. Clumping  globose growth each stem 2" in diameter. Yellow flowers. Origin: Uruguay, Brazil.

Frailea aureispina. USDA: 9b-11.  Hardy to 25°F.  Light shade, keep dry winter. Origin: Argentina, Uruguay.

Frailea canaupari

Frailea chrysacantha. Hardy to 25°F. Light shade, keep dry winter. Clumping, stems 1" in diameter. Yellow flowers. Origin: Argentina, Uruguay, Paraguay.

Frailea columbiana. Hardy to 25°F. Light shade. Keep dry winter. Clumping barrel, slowly offsetting, up to 6 inches tall. Origin: Colombia, Venezuela, Peru.

Frailea concepcionensis. Light shade. Keep dry winter. Argentina, Paraguay

Frailea dadakii

Frailea friedrichii. Light shade. Keep dry winter. Origin: Brazil.

Frailea grahliana. Light shade to part sun.  Heavily clumping, green globose stems. Origin: Paraguay, Argentina.

Frailea heliosa. USDA Zone 11. Hardy to 25°F. Full sun to light shade. Keep dry winter. Solitary stems under 6" in diameter. Bright yellow flowers. Origin: Uruguay, Paraguay