Some friends may have only heard about it, but they are not very familiar with its specific concepts. Here is a brief introduction. In winter, the underground part of these plants will spend the winter in the soil; then, when the next spring comes, the above ground part will sprout again, continue to develop, bloom and finally bear fruit. Generally speaking, most of these plants are in cold areas. They can be divided into two categories: cold resistant and non cold resistant. For the former, it can be planted in the open; for the latter, it can't be, it must be in the greenhouse.
(1) peony: This is a kind of herbaceous flower of Ranunculaceae. It has been planted for thousands of years in China. It is almost one of the earliest cultivated varieties in China. It is also listed as the "six famous flowers" and is called the "Fairy". It is more in the north of our country.
(2) lotus peony: a kind of typical perennial flower, which is a kind of herb. For those in the wild, the altitude is very high, belonging to the cold resistant species.
(3) hollyhock: it is also representative. Because it is mainly distributed in Sichuan, it is named after "Shu". It is also a cold resistant species.
(4) lily of the valley: it is mainly distributed in North China, and its growth altitude is also high. It likes cool weather and is extremely resistant to severe cold weather.
It is very common for this kind of plants to be used in gardens. Generally speaking, it can be used in flower beds, flower paths, lawns, water greening, etc. But in view of the regional characteristics are different, the applicable varieties are also different
