Planting methods and precautions of chrysanthemum in winter

Chrysanthemum grows near water or in moist areas. Nowadays, it is popular to grow hydroponic plants in offices or homes, and this chrysanthemum can represent auspiciousness or peace. The following introduces the winter planting methods and precautions of chrysanthemum .

Planting methods and precautions of chrysanthemum in winter

Medal chrysanthemum is an annual or biennial herb with a peculiar shape and colorful flowers. The center of the flower has dark eye spots, which looks like a medal and has a strong wild charm. It is one of the common potted flowers and flowerbed plants in gardens. Medal chrysanthemum likes a warm, humid and sunny environment. It is not cold-resistant, high temperature-resistant, and afraid of stagnant water.

1. Reproduction method.

Commonly used propagation methods are sowing, division, cutting and tissue culture.

1. Seed propagation: Spring sowing in April or autumn sowing in September, 560-580 seeds per gram, suitable temperature for germination is 16-18℃, germination takes place 14-30 days after sowing. When the seedling has one pair of true leaves, move to a 4 cm seedling tray. In some areas, seeds have the ability to self-sow and reproduce.

2. Propagation by division: Before the stems and leaves grow in March and April, dig out the overwintering mother plants and cut them longitudinally from the root neck of the plant cluster with a knife. However, each division must have buds and roots and can be directly potted.

3. Cutting propagation: usually carried out in spring and autumn, indoor cultivation can be carried out all year round. Cut the buds with stem nodes, leaving the top two leaves. If the leaves are too large, you can also cut off 1/2 to reduce the evaporation of water on the leaves. Insert into the sand bed, keep the room temperature at 20-24℃ and maintain a high air humidity. Rooting will take place 20-25 days after insertion. If treated with 0.1% indolebutyric acid for 1-2 seconds, rooting will be faster.

2. Cultivation and management.

Medal flowers are usually grown in 8-12 cm pots. When the seedlings have 3-4 leaves, they can be taken out of the 4 cm seedling tray and planted in a 12 cm pot. Fertilize every half month during the growing season to keep the soil moist and in sufficient sunlight, and the medal flower can bloom continuously. If you do not keep seeds, you should cut off the flowers in time after they fade, which can reduce nutrient consumption and promote the formation of more buds and flowering. It can continue to bloom in winter when placed indoors.

3. Disease and pest control.

Common damage is leaf spot disease, which can be sprayed with 1000 times diluted 25% carbendazim wettable powder. Insect pests include red spider mites and aphids, which can be killed by spraying 1000 times diluted 2.5% dernetin emulsifiable concentrate and 1500 times diluted 40% omethoate emulsifiable concentrate.