The city flower is the representative flower of a city. As the city flower, it is usually a common variety in this city. City flower is an important symbol of city image and a business card of modern city. A considerable number of large and medium-sized cities at home and abroad have their own city flowers.

The determination of the city flower can not only represent a city's unique cultural landscape, cultural heritage and spiritual outlook, but also reflect the harmonious unity between man and nature, which is of great significance for promoting the development of city-related green industries, optimizing the urban ecological environment, improving the city's taste and popularity, and enhancing the city's comprehensive competitiveness.

Rose has strong adaptability to the environment, likes warm and cool climate and sufficient sunshine, and is drought-resistant and cold-resistant. Varieties can be divided into rose, mini rose, ten sisters rose, multi-flowered rose, extra-large rose, single-flowered rose and vine rose.

The main purpose of extended data:

1, landscaping

Rose has an indispensable value in landscaping, and it is the most frequently used flower in north and south gardens. Rose is the main ornamental flower in spring, with long flowering period, high ornamental value and low price, which is loved by gardens all over the world. It can be used to decorate flower beds, flower borders and courtyard flowers in gardens, and can be used to make rose bonsai, cut flowers, flower baskets, bouquets and so on.

Because of its climbing growth characteristics, Chinese rose is mainly used for vertical greening and plays a unique role in landscape and beautiful flower environment. If we can form a pleasing energy path and style, make various arches, grids and frames for Chinese roses to climb, and then after proper pruning and modeling, we can decorate the building and become a clever "link" between the building and the garden.

2. Environmental protection function

It can be made into continuous flower fences, flower screens and flower walls, which can be used in institutions, schools, residential quarters, city squares and other places. It can not only purify the air and beautify the environment, but also greatly reduce the noise pollution in surrounding areas and alleviate the greenhouse effect of cities in hot summer. Rose is also an expert in absorbing harmful gases, which can absorb hydrogen sulfide, hydrogen fluoride, benzene, phenol and other harmful gases, and has strong resistance to sulfur dioxide and nitrogen dioxide, so rose is also a good flower to protect human living environment.

Baidu Encyclopedia-Beijing Flower