What is the cold tolerance of peony?

In theory, peony can withstand a low temperature of about MINUS 30 degrees.

Peony flowers can generally be cold-resistant to about MINUS 20 degrees, and some peony varieties can be cold-resistant to about MINUS 30 degrees. Peony is a relatively cold-resistant plant, which has strong cold tolerance and can grow normally in the environment of MINUS 30 degrees. Generally speaking, peony is not afraid of freezing in cold winter. But to be on the safe side, measures should be taken to keep warm and keep out the cold in cold areas. Peony flowers can be maintained outdoors in winter. In order to prevent frostbite of peony flowers, water them once before winter. Plants with short plant types can be cultivated for cold protection from the end of June 5438+ 10 to the beginning of June 165438+ 10, and the roots of peony flowers can be covered with a layer of straw. Peony flowers are suitable for growing in humid environment, but the evaporation of water is slow in winter, so it is best to provide reasonable water for peony flowers in winter, and it is best to provide water for peony flowers in the afternoon with high temperature to keep the soil in a humid state. Peony is a light-loving plant. When it grows, it will grow poorly or the leaves will turn yellow because of insufficient light. Therefore, it is necessary to provide suitable light for peony maintenance, so that peony can carry out normal photosynthesis and store enough nutrients for the winter. Peony flowers may suffer from diseases in winter, so when maintaining peony flowers in winter, it is necessary to prune the plants properly, cut off the branches and leaves that grow too densely, and spray chemicals on peony flowers regularly to eliminate the germs on peony plants so that peony flowers can grow healthily.

Although in general, peony is cold-resistant and not afraid of freezing, its cold-resistant and frost-resistant ability is still relatively poor for peony seedlings that have just been transplanted or have poor growth. Therefore, peony seedlings that have just been transplanted or are not growing well in that year still need cold protection in cold winter.

In addition, not all peony varieties are so frost-resistant, and some peony varieties are also relatively afraid of freezing, such as the yellow peony variety: Yellow Sea, which is very susceptible to freezing. Even in Shandong, the temperature is below zero in winter, and sometimes it freezes to death. Therefore, those peony varieties that are not frost-resistant should be carefully protected in winter to prevent freezing.