Golden Barrel CactusGolden Barrel Cactus Echinocactus grusonii Perfectly round, densely spined and deeply satisfying to look at. The Golden Barrel is a design classic of the cactus world, its globe shaped body covered in neat, evenly spaced ribs lined with bright golden yellow spines that catch the light from every angle. Slow growing and long lived, this is a plant you'll have for years. Native to central Mexico, Echinocactus grusonii is sadly endangered in the wild,