About the Fairy Castle Cactus A tiny kingdom for your windowsill! Fairy Castle Cactus grows in clusters of upright green stems at different heights, creating a charming skyline of towers and turrets. Rows of pale spines trace each ridged stem, adding intricate detail to its storybook silhouette. Known botanically as Acanthocereus tetragonus, this slow-growing cactus brings a little magic to a bright spot in your home. Its easy-care nature makes it a lovely choice for enjoying something unusual without a demanding routine. Just admire this castle with your eyes, not your fingertips: those spines are sharp! Plant care Light: Bright indirect light. Water: Allow the soil to dry out completely before watering, then let the pot drain fully. Do not leave the cactus sitting in water for more than an hour, as this can cause root rot. Difficulty: Easy. Feed: Apply cactus or general-purpose fertilizer at half strength, no more than once a month during the growing season. Cacti do not require much supplementary feeding. Air purifying: Known to remove formaldehyde from the air. Toxicity and handling: Non-toxic to animals, but has sharp spines. Keep away from curious pets and handle with care. Growth rate: Slow growing. Common and botanical names: Fairy Castle Cactus, Acanthocereus tetragonus. Origin: Central America. Product may vary slightly from the image displayed. Please contact Scrim's Florist directly with any questions at 613-232-1733