After 2-3 years of culture, the nutrients in flowerpots have been exhausted. It is difficult for plants to absorb nutrients from flowerpots. As a result, there are problems in natural growth, and the growth trend will be weakened. The time of changing basin can be chosen after the flower withers, at this time, the effect of changing basin on the plant is less, and will not cause too much impact.
First of all, prepare the flowerpot and soil. The flowerpot should be ventilated as much as possible, which is conducive to the respiration of the plant and will not accumulate a large amount of water. The prepared basin soil shall meet the growth demand, and can be mixed with peat soil, river sand and compost to maintain the fertility and water retention of the soil.
After the new pot soil is prepared, it needs to be taken out of the old pot so that it can be planted in the new pot. Gently pat around the flowerpot, and then separate the soil around it, so as to loosen the soil, so that the plant can be easily taken out. Tilt the flowerpot to the side, then lift the plant out. The roots should be pruned properly, the roots should be combed, the useless roots should be cut off, and the healthy and active roots should be left behind.
First add half of the soil to the flowerpot, then plant the Calla in, and then fill in the rest of the soil.
Pay attention to wearing gloves when changing the basin to avoid skin itching.