Which landscape flowers have the longest life and are cheap?

Peony has been a famous flower in China since ancient times, and it blooms gracefully. Known as the king of flowers, its flower-shaped double petals are layered, and the flowers are colorful and graceful. Keeping a peony at home is more than wealth. Many flowers are painted in the New Year, all of which are rich and blooming peonies. There is a poem that says, "Only peony is the real national color, and the city is beautiful when flowers bloom." Since ancient times, peony has been the representative flower of China elegance. Peony flowers have a long life span, and now there are many peony trees that have lived for hundreds of years. It is not uncommon for a peony tree to live for a hundred years. In a certain area of our country, there is a peony tree that has grown for four or five hundred years. This is the peony flower of the Ming Dynasty. It has a history of hundreds of years, and it is still blooming brilliantly and has a long life. Not to mention the peony tree planted for decades, which can sell a lot of money and is simply a family heirloom. The suitable growth temperature of peony is 15℃ to 25℃, and cold environment is needed to promote flowering in winter. Its root system is developed and its meat is rich, so planting in the north is the best choice.