There is a saying that peony plants do not bloom until the spring equinox. That is to say, spring is not the best time for transplanting peony. On the contrary, transplanting in autumn is the best choice. Transplanting can't avoid the injury of fleshy root. In autumn transplanting, the injured part heals faster, which is conducive to the continuous growth of the next year. If it's transplanting in spring, and it's just the season when peony blooms and grows. If the root hasn't fully healed, it can't provide too much nutrients, so it will affect the normal flowering of that year
The root of Paeonia lactiflora should have a soil ball. Before planting, it should be pruned, and the fibrous root that is too long and too dense should be cut off, and the dead branches and branches should be cut off.
Planting soil to loose air, with enough nutrients, the best not to choose barren land (can also make their own nutrient soil).
After planting, water enough and make sure there is enough sunshine. It should be noted that although peony likes to grow in wet places, it is also afraid of waterlogging, so it should be watered fully, but not too much water.