Light Requirements: Prefers full sun. It thrives in bright, direct sunlight and needs at least 6 hours of direct light per day to maintain compact growth and vibrant spine coloration.
Watering Needs: Water thoroughly when the soil is completely dry, then allow it to dry out again before the next watering. Reduce watering drastically in the winter when the cactus goes dormant. Avoid letting water collect in the crown, especially in cool weather.
Soil Preference: Requires a fast-draining cactus mix with added grit such as pumice, coarse sand, or crushed lava rock to prevent moisture buildup around the roots.
How to Fertilize: Feed sparingly during the active growing season (spring and summer) with a diluted, low-nitrogen cactus fertilizer once a month. Do not fertilize during fall and winter dormancy.
Hardiness Zone: Suitable for USDA Hardiness Zones 9–11. It is not frost-tolerant and should be brought indoors or protected in cold climates below 25°F (-4°C).
Pet Safety: Non-toxic to cats and dogs. However, the sharp spines can cause physical injury, so keep out of reach of curious pets.
Additional Care Tips: This species is known for its stunning magenta flowers and dense, colorful spination. It prefers to be root-bound and grows as a solitary stem. Avoid overhead watering and provide excellent airflow to reduce the risk of rot. Repot every few years in spring only if necessary. Blooms appear in late spring when the plant is mature and well-established.
