Peonies ( Paeonia spp . ) can grow well in container . coarse garden peonies(Paeonia lactiflora ) , which are fearless in U.S. Department of Agriculture plant life hardiness zones 3 through 8 , are herbaceous perennials that go down in gloaming . tree diagram peony ( Paeonia suffruticosa , USDA zones 4 through 8) are woody shrubs . Select container that complement your garden ’s manner , such as metal containers for contemporary gardens , faded terracotta for Mediterranean garden , or ornamental clay raft for cottage garden .
Containers for Growing Peonies
paeony require big container with drain holes . Peony root ball are magnanimous , and their containers should fit the root balls without crushing them , plus another column inch or two of space around root balls ' sides and home . A 5 - gallon container is ordinarily tumid enough for one peony .
Most frost - proof containers are worthy , including clay , wood and plastic . coarse garden peonies do n’t tolerate transplanting well , and tree peony are behind - growing , so both plants should outride in their containers for three or four years . sullen container such as clay supporter prevent tree paeony from muff over in secure winds , but dry out out quick compare to wood and credit card container . Wood container made of cypress or cedar tree are buncombe - repellent .
Sites and Potting Soils
Full - sun or partly shaded site are best for growing peonies , and the plants need organically - rich , well - draining potting soil . These large plants are ponderous and difficult to move , so choose your growing site well , or place the pots on boards with wheel .
A mixture of soilless potting stain and well - rotted manure or full-bodied garden compost is suitable for growing peonies . you could purchase commercial-grade soilless potting soil or you could mix your own using 1 part sphagnum peat moss and 1 part perlite or vermiculite . flux 2 digger of pot dirt with 1 shovel of manure or compost , and meet the containers with this mixture . Every spring , when new emergence appears on the paeony , scratch the unaffixed pot grime admixture from the surface of the containers and substitute it with fresh concoction .
Water and Fertilizer
peony in containers ask more water and fertilizer than works in the terra firma . Water the peonies when the soil surface is dry . easy pour pee over the potting soil until it appears through the drain yap in the base of the container . In live weather , paeony may need watering once or more per day .
Fertilize peonies in pots once every month while the plants are in folio . Dilute 1/2 teaspoonful of a liquid 15 - 30 - 15 fertilizer in 1 gallon of piss , and apply the solution to the potting ground . you’re able to replace piddle with plant food result if the paeony need lacrimation . maker ’s instruction manual deviate between products , so read and watch over the instructions on the label .
Frost Protection
An advantage of originate peony in containers is that you’re able to move them indoors to protect them from Robert Frost . freeze temperature can damage peonies and affect flowering in the next time of year .
When common garden peonies have died down and tree diagram peonies have lost all their leaves , move the container to an unwarmed indoor expanse , such as a garage . Water the containers when the ground surface is juiceless to a depth of 1 inch . The peonies are n’t produce and using water supply at this sentence . It ’s significant not to irrigate so much that the potting soil becomes waterlogged , which can cause rotting . Move the containers outdoors again when young growth come out in spring .
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