1. planting time: its seeds can germinate in a warm environment, and are usually planted in March-April or September-10.

2. Seed treatment: select seeds with full grains and high maturity, soak them before sowing to accelerate germination, and sow after most of them germinate.

3. Prepare soil: cultivate with soft, breathable and humus-rich soil.

4. Soil seeding: direct seeding can be used for planting, and the spacing should be controlled at 25-30cm. After planting, provide an environment of about 15℃, and seedlings can emerge in about half a month.