Ferocactus wislizeni
Ferocactus wislizeni · Cactaceae
The gardener's calendar
In autumn, ease off feeding and take the chance to clean up around ferocactus wislizeni and prepare for winter.
ID card
- Common name
- Sonoran Desert Barrel Cactus
- Family
- Cactaceae
- Type
- Succulent (cactus)
- Adult size
- 24 to 60 inches tall
- Blooming
- Spring to summer (April-July)
- Hardiness
- Low hardiness (tolerates short freezes but becomes fragile)
- Exposure
- Full sun
- Origin
- Deserts of the southwestern United States and northern Mexico
Care
Watering
Water moderately during the growing season (spring-summer), allowing the substrate to dry completely between waterings. In winter, drastically reduce or stop watering altogether. Excess moisture is the plant's worst enemy: it's better to underwater than overwater.
Exposure and Light
Place your Ferocactus wislizeni in full sun, ideally receiving at least 5 to 6 hours of direct sunlight daily. A south or southwest-facing location is ideal. Insufficient light weakens the plant and slows its growth.
Substrate and Soil
Use a cactus potting mix or a very well-draining blend (low-nutrient potting soil, sand, pumice). Soil rich in organic matter can promote rot. Drainage must be impeccable.
Fertilization
Apply diluted, low-nitrogen and potassium-rich fertilizer once or twice during the growing season (spring to early summer). Excessive fertilization encourages soft growth prone to disease.
Pruning and Cutting
No true pruning is necessary. Simply remove any necrotic or diseased parts using sterilized tools. The plant's natural barrel shape forms on its own.
Pests and Diseases
Watch for root rot (from excess moisture), mealybugs, and spider mites in very dry conditions. Improve air circulation and check your drainage. Avoid aggressive chemical treatments on cacti.
Did you know?
The Ferocactus wislizeni is nicknamed the 'Arizona barrel cactus' because its squat, thick form allows it to store up to 50 gallons of water in its succulent tissue. Nineteenth-century prospectors desperately sought it out during droughts: although bitter and fibrous, its juice was a lifesaving resource in the heart of the desert. Its enormous curved and yellow spines, sometimes up to 4 inches long, also give it an impressive and instantly recognizable appearance from a distance.
Where to buy it
Plant in spring, once all risk of frost has gone. Pick a plant with healthy foliage and roots that are not exposed. Best time: from April to June.
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Tips generated and checked by Viridia — adapt them to your local climate.