Answer: Peonies are herbaceous perennials that grow from tuberous roots. Each clump can grow 2'-4' tall with an equal spread. The plants are very deep rooted and will need rich, loose, moist soil to perform best. Planted directly in the garden, each peony needs a 12"-18" deep hole. So, if you're planting in pots, make sure the pots are 12"-18" deep. Peonies resent being disturbed once established, and should not be lifted and divided unless absolutely necessary. It's best to transplant them in the fall, after the foliage withers and the roots have slowed their growth. Peonies prefer some shade from hot afternoon sun, so plant them where they will get morning sunshine.
Q&A Library Searching Tips