There is a proverb called "March 3rd, shepherd's purse is a panacea". At this time, the shepherd's purse flower is relatively small, with 4 petals, white or light yellow, sweet temperature and faint aroma.

How long does shepherd's purse take?

Every year from the end of April to the beginning of May, it is the time when shepherd's purse withers. At this time, the stems are yellowish and the seeds are gradually maturing. This is a good time to harvest. If the seeds are harvested too early, the seeds may not be mature enough, and the yield will be lower and lower.

If the harvest time is too late, the seeds may fall off. It is best to harvest shepherd's purse in the morning and evening, so as to avoid the phenomenon of broken pods and scattered seeds caused by noon sunshine. It is not recommended to turn the picked seeds repeatedly by hand after spreading. The quality of the seeds that fall off for the first time is much higher than that after that.

If it is cultivated in a large area, potassium dihydrogen phosphate can be sprayed appropriately.