Soft and woolly from top to bottom, Espostoa lanata is a truly huggable-looking cactus – but don’t be fooled! Its white, cottony hairs conceal fine, stiff spines beneath. This slow-growing, single-column cactus adds a charming vertical accent to any bright space and thrives with neglect. Scientific NameEspostoa lanata (lanata = “woolly”) SynonymsSometimes confused with Cephalocereus senilis (a separate species from Mexico) Common NameOld Man Cactus (Peruvian), Woolly Cactus OriginAndean slopes of Peru and southern Ecuador LightRequires bright, direct light for several hours daily. South- or west-facing windows are ideal. Rotate regularly for even growth. WaterLet soil dry out completely between waterings. Water deeply every 2–4 weeks in summer, and once a month or less in winter. Avoid getting the wool wet. HumidityVery low humidity preferred. Excellent airflow helps prevent rot in dense wool. SoilPlant in a gritty cactus mix with good drainage. Never use moisture-retentive compost. FoodFeed monthly in spring and summer with cactus fertiliser. No feed needed in winter. TemperaturePrefers 18–28°C. Tolerates down to 5°C if kept dry. Not frost-hardy. Pet-safeNo – the spines can injure and the plant is mildly toxic if ingested. Sprouts Top TipsTo keep the wool clean, dust with a dry brush rather than misting or wiping. ExtrasRarely flowers indoors but may form a cephalium with age. Did You Know?Espostoa lanata’s thick coat reflects UV light, protecting the plant from sunburn at high altitudes.
