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Echinocactus grusonii (photo courtesy of Thomas J. Story)
Echinocactus grusonii (photo courtesy of Thomas J. Story)

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Zone
Zones 12-24
Full SunPartial Sun
Full, Partial
Regular Water
Moderate

Echinocactus

Barrel Cactus
Cactaceae
Cacti and succulents

Large, cylindrical cacti with prominent ribs and stout thorns. Many are native to the Southwest. Best known in gardens is E. grusonii, golden barrel, a Mexican cactus of slow growth to 4 ft. tall and 2 1/2 ft. in diameter. With age, the plant often produces offsets to form clumps 6 ft. across. Showy, stiff, yellow, 3-in. spines; yellow, 1 1/2–2-in. flowers appear at the top of the plant in summer. Protect from hard frosts. Water every couple of weeks in summer.

 

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