1, the grass that cooks eggs on March 3 is called shepherd's purse, which can also be called ground vegetables. Shepherd's purse, a local dish, can be seen everywhere on the roadside or in the wild. It is not only nutritious, but also can treat many diseases. There is not only a folk proverb that "shepherd's purse is a panacea on the third day of March in the spring", but also a saying that "eating shepherd's purse in spring is an elixir". It can be seen that shepherd's purse is not only a dish of delicacies, but also a panacea. In traditional Chinese medicine, shepherd's purse has a wide range of medicinal values and is known as "licorice in vegetables".

2. Chinese medicine believes that shepherd's purse is sweet and cool, and belongs to liver, spleen and kidney meridians, which has the effects of harmonizing spleen, promoting diuresis, stopping bleeding and improving eyesight. Every year in the third month of the lunar calendar, everyone collects cauliflower and cooks eggs to eat. Over time, it has become a custom. In order to facilitate memory and hand down this good tradition, people set the third day of March as eating cauliflower.