The Spruce / Krystal Slagle
Thegolden barrel cactusorgolden ball(Echinocactus grusonii) isfrequently cultivated as a houseplant.
As they grow, they may stretch out, becoming more oval than circular.
This cactus can grow up to 6 feet tall when fully mature.
The Spruce / Krystal Slagle
They grow slowly, so small 3-inch indoor specimens will remain manageable for many years before getting large.
Can You Grow Golden Barrel Inside?
Golden barrel cactus can be grown indoors.
The Spruce / Krystal Slagle
They aren’t difficult to grow as long as these plants have the brightest, sunniest location.
Usually, southern-facing windows offer the strongest sun.
These are true, extreme desert plants that cannot handle standing water.
Plant them in very well-draining soil or potting mix.
They usually do not bloom indoors since they require intense sunlight for flowering.
It also needs a phosphorus-rich fertilizer given at least once monthly.
Withhold water for a few months before the growing season.
A simulated drought mimics its natural growth cycle in the wild.
To encourage blooms in the growing season, give it water once a week when grown inside.
This plant needs well-draining soil since soggy soil leads to root rot, potentially killing the plant.
It thrives in a pH range of 6.1 to 7.5.
Use a cacti/succulent potting mix for best results.
Plants that do not get enough sunlight will grow slowly and fail to thrive.
It does best without humidity.
Watering
Golden barrel cactus are prone to root rot.
Do not leave any water in the tray or allow it to sit in water.
In winter, simulate drought conditions, giving no water.
Air Circulation
Golden barrel cactus require air flow around the plant and low to no humidity.
Ensure the plant is not in an airless zone.
Air flow prevents golden barrel cactus from accumulating moisture.
Fertilizer
Feed these plants every four weeks with a phosphorus-rich or low-nitrogen fertilizer.
For the amount to use, follow product label instructions.
Pruning and Maintenance
Golden barrel cactus rarely need pruning.
If your cactus produces flowers, remove withered flowers and stems.
However, if it cross-pollinates with other golden barrel cactus, it tends to be a more prolific bloomer.
Container and Size
Golden barrel cactus grows best in smaller, shallower pots.
Clay or unglazed terra-cotta pots are best for wicking water away from the plant.
Potting Soil and Drainage
When grown indoors, this plant needs dry, very well-drained soil.
A fast-draining cactus soil mix is ideal.
If you use a regular peat-based combination, add sand or extra perlite to enhance drainage.
Repot the plant when the soil begins to break down.
Encourage drainage by adding a few inches of gravel or small pebbles to the bottom of the pot.
Ensure the pot has ample drainage holes.
When repotting, choose a new pot that is only an inch or so bigger than the old one.
You should repot barrel cactus every few years.
It’s best to repot the plant at the beginning of the growing season or in summer.
Treat any cuts with a fungicide.
If planning to move the plant outdoors, slowly acclimate it to the outdoor temperature and sun exposure.
Move the plant outdoors to a partially sunny location for two hours.
Slowly ramp up to an additional two hours each day, giving the plant a sunnier location each time.
Place it in the sunniest window to get as much sun as possible.
Spray them with water and insecticidal soap to remove the insects.
Golden barrel cactus is typically propagated by seed, which is produced by its flowers.
Barrel cacti may also sprout “pups” at the base of the plant.
Slice away the offshoot from the parent plant.
Allow the cut to heal for 24 hours.
Plant it in a moistened, well-draining cactus potting mix.
Water again when you notice new growth.
