Echinocactus grunsonii (Golden Barrel)

Golden Barrell Cactus needs lot of sunlight or bright indirect sun near a window if indoors.  Barrell Cactus benefit from a loose well draining potting mix that is allowed to dry out in between watering during the warm months. 

Light: Full Sun Outdoors; Bright Light Indoors

Watering: Regularly during warm months allowing soil to dry in between watering.  

Mature Size: over 12"

Cold Hardiness: Zone 9-10 (30F)