Cosmos and Gesanghua can be planted together, and will also be planted together in most gardens to play an ornamental role. Cosmos and Gesang flowers are similar in appearance and belong to the same family, but their height, flowering period and color are different. Cosmos and Gesanghua can be planted together. There is not much difference between cosmos and Gesanghua in appearance, and they even look similar. Therefore, most gardens in the south will plant these two kinds of flowers together to play an ornamental role. Both cosmos and Gesanghua have strong adaptability to the environment and strong vitality, which can be seen from both the plateau and the coast. Moreover, these two kinds of flowers are very simple to plant. As long as a lot of seeds are sown, they will bloom vigorously.

The properties and heights of cosmos and Gesanghua are different. The biggest difference between cosmos and Gesanghua lies in their different properties. Although they look very similar in appearance, they are not the same flower plant. Cosmos is an ornamental plant, and Gesanghua is a general term for flowers. Gesanghua means flower in Tibetan, including cosmos, aster, azalea and so on.

Cosmopsis is an annual or perennial herb, its plants can be as high as 1 to 2 meters, and its roots are spindle-shaped. However, Gesanghua is an annual to biennial herb with a height of 30 to 100 cm. Its stem is relatively upright, and there are some small white hairs on its branches, which looks much shorter than cosmos.

The flowering period and color of cosmos and Gesang flowers are also different. Every summer, from June to August, cosmos blooms, and from September to 10, cosmos will bear fruit. The flowering of cosmos is mainly a head-shaped solitary inflorescence, with a diameter of about 3 to 6 cm and a needle-shaped bud. The flowering period of Gesang flower is from May to 10. There are microvilli in the flower and the top is slightly pointed.

There is another most obvious difference between cosmos and Gesanghua. Common colors of cosmos are pink, white and yellow, and the flowers are cylindrical. But the color of Gesang flower is usually red, blue, yellow or lavender, which belongs to bisexual flower.

When planting cosmos and Gesanghua, there are also differences between illumination and fertilization, and the planting methods of cosmos and Gesanghua are also different. Most cosmos is transplanted and enucleated by transplanting the true leaves of seedlings. Planting Gesanghua only requires sowing. In terms of fertilization, cosmos needs regular topdressing at flowering stage, while Gesanghua does not need a lot of topdressing, but only a small amount of fertilizer and water.

In a word, although cosmos and Gesanghua belong to the same family, there are still some differences between them, including subtle differences in attributes, height, flowering period and breeding methods. Although they can be planted together, the flowering period is relatively close, and they are tall and short when flowering, with rich color matching and certain ornamental value.