commit a circle of work into something and then not see the answer you expect is the worst . Many gardeners do everything they can for their peonies only to get no blooms and to be left wonder what could have gone haywire . Most of the prison term , the reason the peonies did n’t rosiness is something unsubdivided that got overlooked .
Too Much Nitrogen for Peonies
If the peonies are establish and have bloomed before , then this is the most probable crusade . Over - fertilisation is believably the most vernacular mistake gardener make . There are several option to relieve this , but probably the easiest is to inseminate with something that contains no N ( a P - K mix for example ) . Another alternative is to lightly till and “ drill ” the soil around the plant .
Taking care to forefend the etymon , “ drilling ” wide holes into the soil can cause much of the nitrogen encountered to liberate into the atmosphere . It also permit for easy memory access to add up in plant food without tilling .
Above all , take upkeep not to over - fertilize , especially in the month or so before blooming time of year . Most of the time , peonies really only need fertilizer in the spring ( in a stock flower or 10 - 5 - 5 mix ) and a good compost and mulch covering in the dusk .

Not Enough Sunlight for Peonies
get them more sunlight will probably require that you either renovate other landscape element or move the paeony themselves . Transplanting is potential the option you ’ll choose .
Late in the gloam , around September or afterwards , after the plants are hibernating , is the best time to transplant . Cut the peonies all the path down to approximate soil point . fag around them in a comparatively wide roofy ( approximately the diam of the original leaf ) and down as far as possible to save as much of the root word organization as you’re able to . Remove and place in their young location quickly . Remember : peonies need full sun and well - drained filth . If you wish to divide plants , now is the clip to do so .
Improper Planting of Peonies
Many plant their peonies too deeply , which “ stunt ” the plant and require it to overhear up before it will flower . Most likely , improperly planted peonies that are still growing will bloom the next twelvemonth .
When planting a peony , the hole it is placed in should be wide enough to hold the antecedent arrangement and no deeper than the top of the roots where the stem begins . set up the plant in too deeply runs the risk of infection of it not being able to grow mellow enough to germinate leaves in the spring and get a ripe , early commencement .
If plant in the fall ( recommended ) , cover the peony with 4 - 6 inch of mulch and take out the mulch in the former spring after the first major thaw .

First Planting of Young Peonies
peony newly - transplanted or that are new in the ground will only occasionally bloom in their first class . So if you just buy peonies and implant them and have not see any blossom ( but the plants appear otherwise healthy ) , you ’ll belike just demand to care for them as common and await another year .
Want to learn more about peonies that do not bloom?
Check out these imagination : Transplanting Peoniesby the Iowa State University ExtensionCommon Peony Question and Answersby the North Dakota State University Extension Service