1, Chrysanthus grandiflora: It is native to the southern United States, and has been introduced and cultivated all over the world. Chrysanthus grandiflora of Compositae is a perennial herb, and its inflorescence resembles a cattail when it matures, so it is called Chrysanthus grandiflora, also called cattail chrysanthemum.

2. Daisy: Originated in Europe, it is the national flower of Italy. It was artificially introduced to China in 1950s for ornamental purposes. It is cold-resistant and suitable for cold climate. It blooms badly in hot conditions, and it is easy to die. During the growing period, it likes sunshine and is not tolerant of shade. Daisy can be propagated by sowing or by dividing plants, which can be planted in spring and autumn, and the sowing effect in autumn is better.