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Cactus Barrel

Ferocactus wislizeni

succulent

verifiedReviewed by the GreenScout Team

A large barrel-shaped cactus native to the Sonoran Desert, characterized by prominent ribs and sharp golden spines arranged in clusters. When mature, it produces stunning yellow flowers and can reach significant size indoors. This species requires intense light and infrequent watering to thrive.

Common Problems

Select the problem your Cactus Barrel is experiencing to get a treatment guide.

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Root Rotchevron_right

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Slow Growthchevron_right

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Brown Spotschevron_right

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Wiltingchevron_right

Care Guide

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Light

Intense, direct sunlight essential; minimum 6–8 hours of direct sun daily for healthy growth and flowering

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Water

Water thoroughly during growing season, then allow soil to dry completely; minimal water in winter dormancy

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Soil

Fast-draining cactus or desert mix; add extra coarse sand, perlite, and gravel to standard potting soil

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Fertiliser

Feed sparingly once or twice during growing season with diluted cactus fertilizer; do not overfertilize

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Temperature

Tolerates heat well; thrives at 70–85°F (21–29°C); needs cool winter rest at 50–60°F (10–15°C)

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Humidity

Requires very low humidity; ensure excellent air circulation and avoid humid conditions

Toxicity

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Non-toxic; however, sharp spines pose physical injury risk; keep away from young children and pets

Common Diseases

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Common Pests

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Seasonal Care

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Resume regular watering and feeding as growth picks up.

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Peak growing season. Water and feed regularly.

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Reduce watering as growth slows. Stop heavy feeding.

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Minimal watering and feeding. Protect from frost if needed.

Frequently Asked Questions

Why won't my Cactus Barrel flower?

It needs to reach maturity and intense direct sunlight (6–8 hours daily) before producing its stunning yellow flowers — younger or under-lit plants typically won't bloom yet.

How often should I water my Cactus Barrel?

Infrequently — water thoroughly during the growing season, then let it dry completely, and cut back to minimal water in winter dormancy since overwatering leads to root rot.