Light: Yellow Tower Cactus thrives in bright, indirect light or partial sunlight. It can tolerate some direct sunlight, especially in the morning or filtered sunlight throughout the day. Indoors, place it near a south or east-facing window where it can receive plenty of light. Outdoors, provide partial shade in hot climates to prevent sunburn.
 
Temperature: This cactus prefers warm temperatures between 65-80°F (18-27°C) during the growing season. It can tolerate slightly cooler temperatures down to 50°F (10°C) in winter, but protect it from frost and freezing temperatures, as prolonged exposure can damage or kill the plant.
 
Watering: Water the Yellow Tower Cactus deeply but infrequently. Allow the soil to dry out almost completely between waterings, especially during the dormant period in winter. In spring and summer, water more frequently when the top inch (2.5 cm) of soil feels dry. Always ensure that excess water drains away completely to prevent root rot.
 
Soil: Plant the Yellow Tower Cactus in a well-draining cactus or succulent potting mix. You can also create your mix by combining regular potting soil with perlite, coarse sand, or pumice to improve drainage. The soil should be slightly acidic to neutral (pH 6.0-7.0).
 
Fertilizing: Feed the Yellow Tower Cactus lightly with a balanced, water-soluble fertilizer formulated for cacti and succulents during the growing season (spring and summer). Dilute the fertilizer to half-strength or follow the manufacturer's instructions. Avoid fertilizing during fall and winter when the plant is dormant.
 
Potting: Repot the Yellow Tower Cactus every 2-3 years in spring if it has outgrown its pot. Choose a container with drainage holes to allow excess water to escape. Use gloves and newspaper to handle the cactus due to its spines.
 
Humidity: This cactus prefers low to moderate humidity levels. It is adapted to arid conditions and does not require high humidity. Ensure good air circulation around the plant to prevent fungal diseases.
 
Pruning and Maintenance: Remove any dead or damaged parts of the Yellow Tower Cactus with clean, sharp scissors or pruning shears. Take care to avoid touching or damaging the plant's spines.
 
Pest Control: Monitor the Yellow Tower Cactus for common cactus pests such as mealybugs, scale insects, or spider mites. Treat infestations promptly with insecticidal soap or neem oil, following the manufacturer's instructions.
 
Winter Care: Reduce watering in winter to mimic the plant's natural dormancy period. Protect the cactus from cold drafts and keep it in a cool, dry location with adequate light.