Peony is one of the top ten famous flowers in China. It is widely loved by people. In recent years, potted peony has also entered the courtyard of ordinary people. Peony is usually planted in the field, and it is difficult to potted peony. Summer management is the key to successful cultivation of potted peony. So, how can we make potted peony spend the summer safely?
Three precautions in summer management
1. The high temperature and strong light in summer can not only affect the photosynthesis of plants, but also lead to the wilting of leaves and the appearance of dry yellow and scorched edges. Therefore, potted peony must be cultivated in the shade shed to cover 50% of the light so that the plants can receive the light before 9:00 a.m. and after 5:00 p.m. In addition, it is necessary to spray water around the blade and basin frequently to increase the air humidity and reduce the evaporation of water on the leaf surface.
2. Waterproof big rotten root peony like wet environment, but because it is fleshy root, afraid of flooding. Water peony in summer, can be watered once a day, rainy days should be less water or no water. In particular, it is necessary to avoid being drenched in rainy days. In case of being drenched, the water in the basin should be poured out in time, and the soil moisture should be loosened timely to speed up the evaporation of water in the soil.
3. The main diseases of potted tree peony are black spot and anthracnose. When the disease is mild, the diseased branches and leaves can be cut off and burned in time; when the disease is serious, the chlorothalonil 1000 times liquid should be sprayed on the leaves every 5 days until the end of September. The pests of potted peony mainly include scale insects, aphids, etc. if there are a small number of them, they can be removed by brush; when the number is large, it can be sprayed with 1000 times of 40% Omethoate EC or 1200 times of 80% dichlorvos EC.
Maintenance of potted peony at flowering stage
The flowering period of potted tree peony is the same as that of ground planting tree peony, which is usually from the late April to the middle of May. The maintenance is very important during this period. If the management is proper, the flowering period is long and the flower is big and colorful. If the management is not proper, the flower color will not be bright, and it is easy to cause plant growth decline.
1. When the peony flowers bloom, it is windy season in the north. Because the flower diameter is generally between 15 cm and 25 cm, it is easy to lead to heavy head and heavy feet. Therefore, after flowering, in case of strong wind, it is very easy to break the branches, and the wind can also easily damage the delicate petals, resulting in "dry edge" phenomenon. Therefore, peony flowering must be placed in the leeward of the place, flowering branches should also be supported by fine sticks.
2. Sufficient light is needed in the flowering period of Paeonia suffruticosa. If the light is insufficient, the branches are easy to grow excessively and the leaves are small and yellow. Besides, the leaves can not normally carry out photosynthesis, so that the flowers can not get enough nutrients. Not only the flowers are small, but also the flowers are not colorful and have no fragrance.
3. The water requirement of peony in flowering stage was higher than that in normal times. Although the temperature is not high in spring, the wind is strong and the water evaporates quickly, so it is necessary to give the plant enough water. According to the author's experience, during this period, the basin soil should be kept moist (no ponding). When the basin soil is half dry, it should be watered. At ordinary times, when the temperature is high and the light is sufficient, water should be sprayed on the leaves of the plant, but not on the flowers, otherwise the flowers will wither early.
