In order to prevent the ball of cactus from appearing ugly spots or even rotting, you can't directly pour water from the top of the ball into the flowerpot when watering. Instead, water should be poured slowly around the flowerpot onto the flower soil. When they slowly infiltrate into the soil, the plants can absorb water.
1. Water quality selection: when watering, it is better to choose pure water. If conditions permit, you can also choose rainwater or clean lake water. All this water is good for the growth of plants. If there is no condition to obtain the water, tap water can also be used to water it. However, before pouring, you need to connect the water well and put it in the sun for 1-2 days.
2. Frequency of watering: it likes slightly wet environment, but it is very afraid of waterlogging. Therefore, in the spring and autumn growth season, water can be given every 7 days or so. In summer, in order to prevent it from dehydration due to high evaporation, water can be given every 3 days or so. But in winter, in order to avoid disturbing its sleep, it is better to give water every 15 - 20 days.