How to Grow a Cactus (Ball Cactus)? A Complete Guide to Care Methods and Tips
I. Growing Environment
1. Soil: The ball cactus is a desert plant and suits acidic or slightly acidic soil. You can mix leaf mold, garden soil, coarse sand, and decomposed bone meal.
2. Watering: The ball cactus likes a moist environment. Spring, summer, and autumn are its peak growing seasons, so increase watering then to keep the soil moist. If grown indoors, spray water around it often to raise air humidity. In winter, water it after the soil dries out; if the indoor temperature is low in winter, keep the soil slightly dry.
3. Light: In summer, provide shade during strong sunlight. In other seasons, place it in a spot with ample light. Do not keep it in a shady indoor spot for a long time, or its color will turn black. For about 2-3 days each month, place it outdoors to receive light.
4. Fertilizing: Mainly use phosphorus fertilizer, and do not apply too much, otherwise the soil concentration will exceed the concentration at the roots and the ball cactus will dehydrate.
II. Propagation Methods
1. Cutting propagation: Use a small knife to separate the offsets. If the wound is too large, let it dry, then place it on the sand; do not insert it into the sand. After the sand surface dries, sprinkle a little water. After planting, keep it indoors at above 20°C, and it will take root after one month.
2. Seed propagation: Soak the seeds in warm water for 3 days, then sow them, then water. Keep the temperature at around 25°C and cover with white paper and glass. After one month, seedlings will emerge. After emergence, remove the white paper and glass. No additional fertilizing is needed. After growing for one year, separate the seedlings and pot them.
III. Common Pests and Diseases
Common pests and diseases of the ball cactus include anthracnose, scale insects, and whiteflies. Generally, improve ventilation and control water properly. Once pests or diseases are found, spray pesticides promptly.