Platycodon grandiflorum is a perennial herb belonging to Campanulaceae, which is also called monk's crown cap, bell flower, baobab flower, etc. Platycodon grandiflorum has strong environmental adaptability and can be planted in many areas of China. It has milk in the plant and is smooth and hairless. The roots are thick and fleshy, conical or forked, and the skin color is yellowish brown. The stem is upright and branched. Most of the leaves are alternate, and a few are opposite. The shape of the leaves is oblong and the edges of the leaves are serrated. The flowers are large in shape, solitary at the top of the stem root or a few are sparse flowers in total order. The height of the plant is 3~12 cm, the flowers are 3~5 cm straight, the colors of the flowers are purple blue, emerald blue, pure white, etc., and the flowers are beautiful. The flowering period is between July and September every year, and the seeds mature around October. It is often used as an ornamental flower or directly used as medicine. It can relieve cough, eliminate phlegm, treat voice loss, treat lung abscess and lower cholesterol.

platycodon grandiflorum-evergreen nursery in northern Beijing