Double Peonies Are Not Blooming
I planted many double peonies in my front yard years ago, and most of them are blooming year after year, but three of the white ones and pink ones are not blooming in recent years. They do have healthy leaves but not buds and no blooms.
Certified GKH Gardening Expert
They may either be lacking light or they are lacking in phosphorous. Check the area to see if over the years, they have not become shadowed by surrounding plants and trees. If you feel they are getting enough light, try adding some bone meal to their soil to help get them blooming again.