Sue Sanderson

Sue Sanderson – our horticulturist expert

Sue Says
This is quite a common question with tree peonies, and there are a number of reasons for flowering to be delayed. A three year old tree peony should be capable of flowering, however it does take them some time to settle in after planting, and some varieties require longer. However,it’s worth checking the area that it is planted in to ensure it is growing in optimal conditions. Peonies are at their best in sunny positions and won’t do well in heavy shade. They also need shelter from cold drying winds and strong early morning sunlight. Check the soil isn’t too wet as the plant will struggle and eventually rot – peonies like well drained moist soil. Also check that the tree peony is planted so that the grafted union sits at least 10cm (4”) below the soil surface. Shallow planting may hinder establishment and is often the cause of delayed flowering. Take care not to over feed tree peonies. If you are gardening on a reasonably fertile soil then a high potash feed potash in spring, and a mulch of well rotted manure or garden compost in autumn will probably be sufficient. If everything looks as it should, and the plant appears to be healthy then it may just require more time. These plants are not for the impatient gardener, but they are well worth the wait once they do begin to bloom.

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