Devil's Tongue Barrel Cactus (Ferocactus latispinus)

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Sunlight Requires full direct sunlight for 6–8 hours daily; tolerates intense desert sun, avoid prolonged low-light conditions

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Watering Water deeply only when the soil is completely dry; avoid overwatering to prevent root rot and stem decay

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Temperature Thrives in 20–35°C; tolerates brief light frosts down to 5°C, protect from hard freezes below 0°C

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Leaf: Modified into sharp, curved radial spines and longer hooked central spines; no true foliage leaves
Flower: Bright yellow to orange-red funnel-shaped blooms, 5–7 cm wide, emerging from crown areoles
Stem: Thick, fleshy globular stem with prominent vertical ribs, specialized for water storage

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Watering

Water deeply once every 10–14 days when soil is fully dry

Fertilization

Diluted cactus fertilizer applied once monthly. Suspend fertilization during autumn and winter dormancy to avoid nutrient burn

Eggshell powder topdressing：Crush dried, clean eggshells into fine powder; sprinkle lightly on the soil surface to add calcium without damaging roots

Pruning

Carefully remove dead or broken spines with tweezers to maintain plant appearance
Trim offset pups at the base in spring for propagation, taking care to avoid damaging the main stem
Clear debris from the plant crown to prevent moisture buildup and fungal rot

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Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats; physical injury from spines is the only potential risk

Humans: No toxic compounds; physical puncture from spines may cause mild skin irritation

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Culture: N/A

Usage: Ornamental succulent for desert gardens and xeriscaping; container plant for sunny indoor spaces