The peony is a plant with a rustic character that produces a splendid flowering and is also very suitable for cultivation in areas where the winter climate is rather rigid, requiring no special precautions for its conservation.
The root system of peonies is constantly developing from year to year. After about 2 or 3 years it is therefore almost always necessary to change the original vase replacing it with a larger one or planting the plant in the garden.
The best time to plant peonies, both bare and potted, is from September to the last days of November; planting in autumn allows the peony to develop and branch its root system before the beginning of the vegetative restart. It is possible to plant in winter, as long as the soil is not frozen during the day.
After the month of March, peony plants can be planted, as long as they are grown in pots.
The most hospitable ground for peonies is fairly clayey, rich in humus, deep, permeable and well drained. The optimal pH is sub-acidic or neutral: (6.5-7). It is important to till the soil before planting, if necessary mix it with sand and peat and enrich it with organic fertilizers (very mature manure, compound vegetable fertilizer, cornunghia, dried blood); it is good, however, to avoid direct contact of the roots with fertilizers.
We must try to avoid as much as possible water stagnation, for this purpose, in particularly damp soils, it is useful to place a 5 cm layer of gravel on the bottom of the planting hole. The peony, in fact, is more resistant in case of drought, rather than in the presence of an excessive quantity of water, which can easily cause the onset of radical rot.
Display and characteristics of the place of installation
Peony plants are planted in sunny places or in half shade, depending on the region. They need space and should not be too close to the roots of other plants. Both shrubs and herbaceous plants are often cultivated as isolated plants; herbaceous peonies can be planted with other perennial herbaceous species, provided there is sufficient space for their growth (around 80 cm around).
If used to form flower beds or hedges, a space of about 80 cm must be left between the plant and the herbaceous plant; and 120-150 cm for the trees.
The exposure of the peony is very important. If you are not sure of finding the right location, consult your trusted nursery for a suggestion.
Planting the peonies: Instructions for the plant
make a break of about 40 cm of side and 40 cm of depth; mix the extracted earth and the fertilizer well and completely bury the plant covering the buds with 2-3 cm of earth.
make a break of about 40 cm of side and 40 cm of depth; mix the extracted earth and the fertilizer well, place the plant in the hole so that the grafting point is about 8 cm below the ground level, cover being careful not to break any secondary roots.
It is advisable to protect the plant with three sticks embedded in the shape of a pyramid to avoid stepping on it.