In late spring, when the new shoots emerge from the roots. It is best to wait for this time of year before transplanting peonies since it will help establish a strong root system and encourage better flowering in future seasons. Choosing a planting location that receives at least six hours of direct sunlight daily is also important as it helps them establish strong roots.
How much sun do they need?
They appreciate full sun but only require about five hours each day to thrive. If you have multiple varieties or species, choose locations with similar growing conditions so your plants can enjoy consistent care and develop an established root structure over time instead of being transplanted from one patchy area to another every few years! The same goes for perennials – choose a spot that gets good light for a long period of time versus trying to grow them in shade all summer or into harsh winter weather without protection from freezing temperatures.