How to grow peonies? Detailed guide to cultivation methods and techniques
1. Light
Peonies are very difficult to grow well in pots over a long period, so when planting peonies you should choose a spot with ample sunlight; generally a southeast-facing location is ideal, and they need fairly strong light while also fearing scorching sun, so it is best to have some tall trees to block the light, for example what we commonly call a dappled-shade environment, for them to grow ideally.
2. Temperature
Peonies are fairly cold-hardy and afraid of high heat; once temperatures rise above 25 degrees, they enter a dormant state. In winter they can overwinter safely in the vast majority of regions, and there are records saying they can withstand low temperatures of more than 30 degrees below zero.
3. Soil
They have strict soil requirements, needing well-drained, deep neutral or slightly alkaline soil; for example, the peonies of Luoyang and Heze are all cultivated on the embankments of the Yellow River.
4. Water and fertilizer
For peony water and fertilizer management, you should manage two key waterings well: first, before winter begins, irrigate once with wintering water; second, after spring begins, water once with green-up water. Also, before flowering, after flowering, and after leaf fall, apply fertilizer once each, which greatly helps the following year's blooming.
5. Pruning
When caring for peonies, you need to do pruning well: promptly cut off spent flowers and clear away small shoots at the base, to encourage strong branches to bear flowers, and do not let the small branches grow too tangled. These are the care measures, but wanting to grow peonies well is a very tedious job.