How to raise chrysanthemums in winter
As a famous traditional flower in China, chrysanthemums require special care for their maintenance in winter. The cold season is not only a dormant period for plants, but also a key preparation stage for rejuvenation in the coming year. Mastering scientific maintenance methods can not only help chrysanthemums survive the winter safely, but also accumulate energy for spring germination. 1. Core operations of root maintenance: pot change skills for soil selection in early winter: It is recommended to choose sunny weather operations and stop watering 3 days in advance to dry the soil a little. The substrate is prepared according to the ratio of humus soil: garden soil: river sand =2:1:1, and 5 g of bone meal is added per liter of soil to enhance air permeability. After changing pots, place them in a scattered light environment to slow down the seedlings for 7 days, and wait until the new leaves stretch before normal management. 2. Precise temperature control points to maintain the optimal wintering temperature of 5-15℃, and no lower than 0℃ at night. In the northern heating area, attention should be paid to avoid heat sources of more than 2 meters and use humidifiers to maintain 40% humidity. Southern Luyang recommends building a double-layered plastic shed for proper ventilation at noon. Scientific light management ensures direct light for more than 4 hours every day, and plant fill light can be used to extend the light to 8 hours. Rotate the flowerpot regularly to ensure uniform light reception and avoid off-crown growth. 3. The precise water control plan for collaborative management of water and fertilizer adopts the principle of "seeing dry, seeing wet" and is poured thoroughly after 2cm of topsoil is dried. The water temperature needs to be consistent with room temperature, and it is recommended to use the dipping basin method for water supply. Watering should be suspended 3 days before the arrival of the cold wave. Nutrient replenishment strategy Apply phosphorus and potassium slow-release fertilizer (N-P-K=5-15-10) before winter, with 15-20 grains per pot. Fertilization was stopped during the winter, and organic liquid fertilizer diluted 2000 times was applied two weeks before the beginning of spring. 4. Tips for shape trimming Carry out shape pruning from December to January of the following year, retain 3-5 main branches, and remove crossing branches and withered branches. Apply plant ash to the incision to prevent infection, and spray brassinolide to promote healing after pruning.
Through systematic maintenance and management, chrysanthemums can not only survive the winter safely, but also accumulate sufficient nutrients. When spring returns to the earth, the plants that have been scientifically cultivated in winter will show stronger growth and bloom more gorgeous flowers. It is recommended to check the root status every month and adjust the maintenance plan in a timely manner.