1、 Cause

In the seedling stage at the beginning of the plant, a smaller flowerpot needs to be used in order to maintain normal growth and avoid poor air permeability. If the plant is planted directly in a large basin, it will be difficult to grasp the watering, resulting in an over wet state, which is not conducive to the growth of the plant. At the beginning of planting in small pots, with continuous growth, the plants will grow longer and larger, and the roots will extend more and more dense. In this way, the original small pots are difficult to meet, and a larger flower pot needs to be replaced. In particular, some fast-growing plants need to change the pots once a year and replace the original soil in order to provide sufficient nutrition for later growth

2、 Precautions

1. The best time to change pots is in the spring of each year. At this time, the climate is also very suitable, the damage to the root system is very small, and the growth recovery can be faster in the later stage. Note that it is best not to choose in summer. The temperature is too high and the humidity is high, which is prone to various diseases and pests

2. According to the growth rate, not all flowers need to be changed once a year. Some grow slowly and may need to grow for 1-2 years