Planting a peony in the garden or pots
- Space Peony plants about 1m (3¼ft) apart depending on their ultimate height and spread.
- Dig a planting hole the same depth as the root ball or division and twice as wide.
- Draw back the soil with a spade and firm gently around the plant by pressing with your heal of your boot.
- Ensure the bright red buds are covered with no more than 2.5cm (1in) of soil as deep planting reduces flowering.
- Water in to settle the soil and continue watering regularly, especially in dry weather, during the first summer.
- Mulch with well-rotted organic matter to conserve moisture.
Water regularly in dry spells during the first year to aid establishment, especially if planted in spring or summer. Established peonies are deep-rooted and after the first year should not need routine watering.
To promote growth and flowers, apply a general-purpose fertiliser, such as Growmore, each year in spring at 70gm per sq m (2oz per sq yd). Then mulch with a layer of garden compost or well-rotted manure to conserve moisture and suppress weeds, but avoid covering the centre of the plant as this could damage the buds.
Many peonies have very large flower heads so it’s useful to support the stems by staking.
Deadheading a peony
Dead flowers can be removed after flowering using secateurs as most tree peonies are hybrids and often do not set viable seed. Any seed set would, in any case, not breed true and the resulting seedlings would have different flower colours.
Peony in winter
During autumn and winter, peonies die back to protect themselves from the cold weather and will bloom again the following spring. If you are purchasing your peony during this time, do not be surprised if it is not what you were expecting. The peony will actually be fully rooted even though there is nothing visible above the soil.
It is possible to plant out your peony during autumn and winter so long as the soil is not frozen or waterlogged. Or keep the plant in the nursery pot supplied until planting out in spring.
Download Care Guides
We have created two care guides to help you grow a happy and healthy plant. We have an In-depth Care Guide and a Simplified Care Guide.