1. Planting time: It should be planted in a cool environment, with the temperature between17 and 20℃, mostly in spring and autumn.

2. Soil selection: deep sandy soil with strong drainage should be selected, and the soil should be leveled before planting.

3. Sowing: Before sowing, mix the seeds with fine sand, sow with sowing method, cover with thin soil and water once.

4. Post-maintenance: water well at seedling stage and do it after the soil is dry. When 2-3 leaves grow, they can be transplanted and planted.