- Planting of Herbaceous and Intersectional Hybrids
- Seasonal Care for Herbaceous and Intersectional Hybrids
- Tree Peonies
- Drying Peonies
- Hybridizing your Own Peonies
- Cutting and Storing Peony Flowers for Later Use
Spent flowers can be removed or left on, as you like. Some peonies, especially singles and semi-doubles, produce decorative seed heads after flowering. If you are collecting peony seeds, they are ripe just when pods begin to open in the fall. Peony cultivars do not come true from seed but seeds can be planted and many will germinate and grow, potentially giving new varieties.
Fertlizing may not be necessary if planted in heavy clay, however in sandy soil periodic top dressing with well aged compost in the fall helps maintain soil fertility. Apply compost around the peony but not directly on the crown. You can also use non-organic fertilizers as long as amounts of nitrogen are lower than the phosphorous and potassium. A ratio of 1:2:1(Nitrogen: Phosphorous: Potassium) is often recommended. There are no fertilizer recommendations that are applicable to all situations, but if you feel you have to fertilize, apply a half cup of 10-15-10 in early spring and another half cup just after flowering.
Once established peonies are reasonably drought resistant. If the first spring after planting is very dry the plants will benefit from receiving some water. Drip irrigation is always preferred to overhead watering as it reduces the chances of fungal diseases.