Barrel cacti are not just one species but various species belonging to two genera, Ferocactus and Echinocactus. They are native to southwestern North America. Some species reach over 3 feet at maturity. Others have been known to reach 9 feet in some areas.
They have a lifespan of an average of 100 years. Naturally, barrel cactus live in extreme heat and direct sun, and it’s only natural to try and mimic the same conditions indoors.
Barrel cacti are muffin-shaped and often pop out over the edges of their pots. You can easily distinguish it because of its elongated fruits and wavy ribs.
The flowers that bloom in April tend to be yellow, orange or purple.For barrel cactus to bloom, they need full sunlight during spring and summer. Direct sunlight can make them become stunted and sunburned and fail to thrive, which is why they are perfect indoors because you can control the amount of light they are getting.
Due to adapting to arid conditions, their water requirements are not high, and you can even get away with watering every 2-3 months. Unlike other types of cacti, the barrel ones are hard to check for water because their shape almost covers the whole pot and it’s easy to get pricked.
What kills most barrel cacti is overwatering. Only water when you think it’s essential to avoid root rot.
Place barrel cactus in a south-facing window, and it does best without humidity.