Barrel Cactus plants - Echinocactus Grusonii.

What You Need to Know About the Barrel Cactus – Echinocactus Grusonii

In its natural desert habitat in south­west USA and northeast Mexico, Echinocactus, also known as barrel cactus, can live for over 100 years, eventually forming a mound about 6½ ft. (2 m) across. Its shape is like a slightly flattened ball. E. grusonii, the golden barrel cactus, has a green stem of 50 ribs and buff-colored spines. The wider crown stems bear straw- colored flowers in summer.

Size: Height 5—8 in. (12—20 cm), spread 1 ft. (50 cm).

Light: Direct sunlight.

Temperature: Normal warm room temperature from spring to fall. During the winter rest period 50°F (10°C). No lower than 40°F (5°C).

Moisture: Keep soil moist from spring to fall, in winter apply just enough water to prevent it drying out.

Feeding: Use standard liquid tomato fertilizer once a month in spring and summer.

Propagation: Sow seed.

Special needs: Pot or repot in spring.