The seeds of Polygonatum are usually mature from September to November. At this time, they are collected and soaked in water. By scrubbing and removing the seed's outer skin, it is helpful to improve the germination rate. Do not damage the seeds when cleaning, then filter out the skin and impurities, and take out the seeds.
Put the seeds of Polygonatum odoratum in the incubator and spray the solution after ripening. The humidity in the incubator should be high and not too dry. Then irradiate it with ultraviolet for 20 minutes, take it out and leave it for 1 hour. Soak in water at 20 ℃ and take it out after 4 days.
Late maturing seeds can not be put in the sun, otherwise it is easy to lose water and reduce its germination rate. You need to put it in the shade and wait for it to dry. It can also be put into the freeze dryer to dry, can accelerate the germination of seeds.
Bury the treated seeds in wet sand and take out after 100-150 days. At this time, the germination rate of seeds can reach 80%, and the germination time can be shortened, which can grow in about one month.