Echinocactus grusonii (Golden Barrel Cactus)
Botanical name: Echinocactus grusonii
Common name: Golden Barrel Cactus
Family: Cactaceae
Origin: Mexico
USDA Zone: 9-10
Plant form: Small
Mature height: 2-5 ft
Sun exposure: Full sun or bright light indoor
Cold tolerance: Frost sensitive. Protect from freezing.
Watering: Moderate; tolerates dry conditions
Flower color: Yellow, orange
Suitable for: Outdoors in the suitable USDA zone; small gardens, containers, and indoor growing
Thorns: Thorny or spinyEchinocactus grusonii, commonly known as the Golden Barrel Cactus, is one of the most striking and recognizable desert plants. It forms a perfectly rounded, ribbed globe densely covered with bright golden-yellow spines. Mature plants can reach more than two feet in diameter and may produce offsets with age, forming impressive clusters. This species is native to central Mexico, where it grows on rocky, sun-exposed slopes.
Golden Barrel Cactus prefers full sun and well-drained, sandy or gravelly soil. It thrives in hot, arid conditions and is highly drought-tolerant once established. Mature specimens develop a dense woolly crown at the top, and small yellow flowers appear only from this area during the summer. It performs best in USDA Zones 9-11 and can tolerate brief temperature drops to about 20F if kept dry. Ideal for rock gardens, containers, or xeriscapes, this cactus adds sculptural form and color to any landscape.
