The planting time of northern kale is in spring and fall, and the planting time of southern kale is in fall and winter or winter and spring. 2. Soil:The land where kale is planted can be planted with squash, fruits and beans, but not cabbage and green leafy vegetables.3. Seed Selection:Choose healthy, full and disease-free kale seeds.4. Sowing:Sow the seeds on the soil, then cover with a thin layer of soil, and finally water them appropriately.5.Sowing:Sow the seeds on the soil, then cover with a thin layer of soil, and finally water properly. Kale's growth habit:Temperature:Kale's suitable growth temperature is between 15-20 degrees Celsius, when the temperature is higher than 30 degrees Celsius, kale flesh is easy to fiber. Moisture:Kale prefers more soil moisture and moist air during the spiking period, but can tolerate a certain amount of drought and humid climatic conditions during the seedling and doughnut stage. Light:Kale is a long day crop. Before spring, long sunlight is conducive to growth, summer sunshine is strong, the need for appropriate shade. Nutrition: Kale is a fertilizer-loving and fertilizer-tolerant crop, absorbing more fertilizer than the average vegetable. Seedling and regimentation period requires more nitrogen fertilizer, spike period requires more phosphorus and potassium fertilizer.