In mid-May, the paeoniarockii has basically finished blooming. Post-flowering management is very important and will affect the flowering and growth effects of the next year. The paeoniarockii grafted seedlings cut off the remaining flowers after flowering, mainly based on the following key reasons:
- Reduce nutrient consumption and promote plant growth – Peony flowering requires a lot of nutrients, especially in the initial stage of root system and rootstock fusion of grafted seedlings, the nutrient reserves of the plant are relatively limited. Timely cutting off the remaining flowers can prevent nutrients from being used for seeding or maintaining flowers, and instead concentrate energy on root system development, new bud differentiation and branch and leaf growth, accumulating more sufficient nutrients for flowering next year.
- Prevent the breeding of pests and diseases – If the withered flowers remain on the branches for a long time, they are prone to breeding pathogens such as mold and gray mold due to moisture or rot, and may also attract pests. Cutting off the remaining flowers can reduce the risk of plant infection and maintain overall health.
- Ensure the survival and adaptation of grafted seedlings – Grafted seedlings need to focus resources on the healing and adaptation of rootstock and scion in the early stage. Retaining residual flowers may increase the burden on the plant and affect the healing speed and survival rate of the grafted part. Cutting flowers helps the plant to smoothly pass the critical growth period.
- Promote flower bud differentiation and improve the quality of flowering next year Flower bud differentiation of peony usually occurs after flowering. Cutting off residual flowers can reduce nutrient diversion, enable the plant to photosynthesize more efficiently, and promote the formation of new flower buds, thereby ensuring larger and more luxuriant flowers next year.
Pruning operation suggestions: Timing: Prune immediately when the flowers begin to wither and the petals wilt significantly, and avoid delay. Method: Use sterilized scissors to cut flatly from the base of the pedicel (about 1-2 cm below the calyx) to avoid damaging the new buds. Subsequent care: After pruning, add appropriate amounts of phosphorus and potassium fertilizers to enhance the resistance of the plant; keep the soil moist but not too wet to avoid root rot.
Through scientific pruning, purple-spotted peony grafted seedlings can establish a strong plant structure more quickly, laying a solid foundation for their future ornamental value.