What kind of flower is this? Ask the great god for help.

Platycodon grandiflorum, also known as monk's crown cap and bell flower, is a perennial herb of Platycodon of Campanulaceae. The height of the plant is about 70 cm, the height of artificial cultivation can be as high as 1 m, the leaves are opposite, alternate or alternate, the surface is smooth, and the back is lightly covered with white powder. A single flower or two or three flowers are born on the treetops, which sprout like a monk's hat and are bell-shaped after opening. Flowers are purplish blue, emerald blue, white and other colors, mostly single, double and semi-double. The flowers are quiet and elegant, and the color is charming but not bright.

My family also has a lot of these words, which look good in a pot.