How to plant and manage Corydalis angustifolia in autumn sowing in northern China

I also grow Corydalis angustifolia. If the landlord is in the north, autumn sowing is not recommended. It's too cold. Suggest spring sowing. Autumn sowing can be carried out in the Yangtze River basin.

When sowing Corydalis angustifolia, the easiest way is to avoid light, poke a hole one centimeter deep in the soil with a pen, put the seeds in and bury them. Or put the seeds of Corydalis angustifolia on the soil surface and cover them with vermiculite. This is how my seeds were sown, and they germinated in less than a week. I also use non-woven fabrics and paper towels to accelerate germination. Now the seeds are full, but not as fast as the second method.

Then put the seedling box or flowerpot in the dark to avoid light, and germinate after one week.

Note: The germination rate of Corydalis angustifolia is closely related to the freshness of seeds. Try to get seeds as soon as possible and plant them.