1, planting time: delphinium should be planted in spring and autumn, and the sowing time in autumn should not be too late.

2. Seed treatment: collect seeds in June every year, select high-quality seeds and soak them in water in advance to accelerate germination.

3. Prepare soil: prepare soil with rich humus, good drainage and loose air permeability.

4. Sowing: You can sow the seeds evenly by direct seeding.

5. Precautions: Pay attention to thinning seedlings, weeding, watering and fertilization after emergence.