Peony has a large amount of flowers, and also consumes a lot of nutrients. In order to promote better growth, flowerpots can be replaced once a year. Nutrients in the reused soil are missing, which is difficult to support the later growth. The time of basin change is well chosen, and the temperature is relatively stable in warm spring.
The root of Paeonia lactiflora is relatively developed, and the root is very deep. The flowerpot needs to be selected appropriately, which can be used in a deep large basin, consistent with the plant as a whole. The soil should be suitable. Loose and well drained sandy soil can be used instead of clay. Neutral or slightly acid soil can be used. Unsuitable soil will lead to weak growth.
After preparing the basin soil to be replaced, the paeony should be taken out of the old basin. To judge the good situation, you can use a shovel to turn around to make the soil loose, so that the peony can be separated. If the root system is close to the periphery of the flowerpot, the flowerpot can be directly broken and the plant can be taken out. No matter which method you choose, you can't hurt the root.
First, point the broken tiles on the bottom of the flowerpot, fill in enough base fertilizer, fill in part of the soil, plant the peony with roots, and fill the soil around.
