Cardamom is an evergreen plant, mainly produced in Lingnan. It looks like a banana with relatively large leaves. The flowers are light yellow and bear fruit in autumn. The fruits are spherical. The seeds are like pomegranate seeds and can be used as medicine. They are also fragrant and can be used for stews.

It can increase the flavor of meat when cooking, so adding a little cardamom when cooking scallion oil chicken can make the scallion oil chicken more fragrant.