Jiangsu mulberry leaves took several months to grow.

The climate in the south is mild and may germinate at the end of March.

Mulberry leaves are deciduous shrubs or small trees with a height of 3- 15m. The bark is grayish yellow or yellowish brown, longitudinally shallow, and the young branches are hairy. The complete leaves are oval, wide oval, heart-shaped and so on. , about 15cm long, about 10cm wide, and the petiole is about 4cm long. The leaves are heart-shaped at the base, slightly pointed at the top, with serrated edges and dense white veins. Generally speaking, the harvest after first frost is considered to be of better quality. Mulberries are purple-black, red or milky white when they are mature. The flowering period is April-May and the fruiting period is June-July.

Mulberry leaves are dry leaves of mulberry trees. After the first frost, it was harvested, impurities were removed and dried in the sun. It is a medicine for dispelling wind and heat, which can be taken orally or applied externally. Cold in nature, sweet and bitter in taste, it has the effects of dispelling wind and clearing heat, clearing lung and moistening dryness, clearing liver and improving eyesight.

The climate in the north is cold, so the germination time will be delayed, and some will germinate from mid-April to early May.