PlantFun
Plant Needs
Sunlight
Full direct sunlight for 6–8 hours daily; tolerate partial shade during extreme midday summer heat
Watering
Water deeply only when soil is completely dry; avoid overwatering to prevent root rot
Temperature
Tolerates brief temperatures as low as 5°C; optimal growth at 20–35°C; protect from prolonged frost
Characteristics
- Stem: Thick, ribbed columnar stems with 5–8 prominent, rounded ribs
- Spines: Light brown to gray marginal spines (1–3 cm long) along rib edges
- Flower: White, funnel-shaped night-blooming blooms up to 10 cm wide
- Fruit: Red, fleshy edible berries with small black seeds
Care Guide
Watering
Water every 10–14 days when soil is fully dry
Fertilization
Diluted cactus fertilizer once monthly. Cease fertilization in autumn and winter when growth slows to dormancy
Eggshell powder topdress：Crush dried eggshells into fine powder; sprinkle lightly on soil surface; avoid direct contact with stems to prevent mold growthPruning
- Remove dead or damaged stem segments with clean, sharp shears to maintain plant health
- Trim off offset pups for propagation if desired; allow cut ends to callus before planting
- Avoid over-pruning; preserve the natural columnar form of the main stems
Toxicity
Warning: this plant may be toxic.
Pets & Humans
Pets: ASPCA: Mild skin or oral irritation from spines; no systemic toxicity if ingested
Humans: Mild skin irritation from spines; ingestion of spines may cause oral discomfort
Garden Uses & Culture
Culture: Symbolizes resilience and endurance in arid environments
Usage: Ornamental xeriscaping; edible fruit for human consumption
