1, seed propagation

Propagation by seeding, winter soil is not frozen in the area of the line fall sowing. Northern areas in early spring in the indoor nursery, 15 ~ 20 ℃ conditions, about 7 days seedling. Before the development of the true leaves in time to start seedlings on the pot, frost-free, off the pot with soil planting (do not hurt the roots, otherwise it is not easy to resume growth. Even death); can also be direct seeding in the open ground before the land freezes. Plus wind barrier protection, seedlings the next year out of the ground. Seedlings should be supplied with sufficient water and nutrients. Promote its growth and robustness.

2, management after sowing

After sowing in the fall, when encountering a cold snap and low temperatures, you can use plastic film to wrap the pots for heat preservation and moisturizing;