The barrel cactus is a slow-growing globe-shaped plant. Its native range is from the southern states of the U.S.A. to Mexico. It’s partial to hot climates.
The barrel cactus can grow to 4 feet (1.2m) tall and more than 2 feet (61cm) wide. It has prominent ribs and stout thorns. As it grows older it will produce offsets to form clumps as much as 6 feet (1.8m) wide.
The barrel cactus was once almost made extinct in its natural. It was placed under protection and has made a comeback. It is now popular as a landscape specimens in cactus gardens in containers outdoors.
Barrel cactus must be protected from frosts. It can be grown indoors if given a warm, bright spot and low humidity. It must be planted in well-drained cactus mix and allowed to dry out between watering.
The botanical name for the barrel cactus is Echinocactus grusonii.