Planting time and suitable temperature of chrysanthemum

The whole grass of Artemisia selengensis. It has a special aromatic smell and has a unique repellent effect on pests and diseases. Therefore, it is an ideal pollution-free vegetable with less pesticide spraying. It is a semi-hardy vegetable, which is beneficial to its growth in a cold and mild environment with a relative humidity of 70%-80%. Under the condition of suitable temperature, it can be planted all year round. In recent years, protective planting has become more and more common in winter, spring and autumn. Harvest is usually 40-50 days after sowing, and the growth period is extended to 60-70 days when the temperature is low.

1, planting time-spring and autumn are better. Leased land in the south can be cultivated in spring, autumn and winter.

2. The sowing method can be direct seeding or seedling transplanting, with direct seeding being the majority. Sow the seeds evenly on the cultivated soil, and the suitable degree of covering the soil after sowing is about 1 cm, which is permeable, warm and humid. Seedlings can emerge in 4-5 days, and when the seedlings grow to 2-3 true leaves, thinning is needed.

3. Seeding equipment Planting chrysanthemums on balconies, rooftops or courtyards, optional cultivation containers include flowerpots, pots, professional cultivation boxes, foam plastic boxes, etc. The depth of plough layer is 20 cm.

Suitable temperature for planting chrysanthemum

The optimum growth temperature of Artemisia selengensis is 17-20℃, and the sowing weather in early spring is still cold, accompanied by late spring cold. Therefore, after sowing, the frame should be covered with plastic film or old shed film, and the surrounding area should be compacted and insulated with soil, and the film should be uncovered before the top film is unearthed. When the planting in the protected area exceeds 25 degrees Celsius, ventilation and fresh air should be turned on.