Mint is a common mint, which is a hybrid of green mint and water mint. It originated in Europe and is widely used as a flavoring agent. The leaves of this mint are opposite, lanceolate or oval, 8- 10 cm long and 3-5 cm wide. Its top is pointed, its leaves are flat, its colors are bright green and dark green, its reticulate veins tend to droop, and its leaves have sharp serrations.

Second, lemon mint

Lemon mint, as its name implies, has the fragrance of lemon after the leaves are rubbed, and is generally used to treat symptoms such as headache and abdominal pain. Its whole plant is smooth, with yellow glands on it and serrated leaves. Its cold tolerance is very strong, even in the sub-zero environment, it can still grow, and it is also relatively drought-tolerant.

Third, spearmint

Spearmint, also known as spearmint, is not only ornamental, but also can be used to extract spearmint oil, which can be used as medicine and edible. Its stem is about 40- 130 cm high, its surface is hairless, its color is green, its leaves are sessile, its length is about 3-7 cm, its apex is pointed, and its shape is round or lanceolate.

Fourth, apple mint.

Apple mint is mainly used as an ornamental variety, and the whole plant is hairy, which will give off the aroma of apples. The height of this plant is between 40- 100 cm, the leaves are opposite, and the length is only 3-5 cm, with hairs on both sides and serrated edges. Its flowers bloom in summer, the color is lavender or pink, and they look very beautiful.