Echinocactus grusonii - Golden Barrel Cactus
Golden Barrel Cactus has yellow spines that cast a magnificent golden glow in sunlight. It maintains its spherical form as it grows and is a great design element when planted in multiples. Slow growing, it can eventually reach a height of 4 feet with a 6 foot spread. It requires moderate water; water every two weeks in summer. Plant in full sun near the coast or partial shade inland and protect from frost.