1. Flowers are the means of life to beautify the environment and enrich people's lives. Flowers are the source of color and a sign of seasonal changes. Flowers are important living materials for greening and beautifying gardens and scenic spots. They are used to decorate rooms, venues, balconies, roads, residential areas, industrial and mining areas, temples and other places to form various landscapes. The beauty of flowers often changes with the season, time and weather. Different seasons, different morning and evening, different rain. The rhythm of flowers from germination, germination, leaf spreading to flowering, fruiting and sowing makes people realize the dynamic beauty and melody of life. Flowers enjoy beauty with its beauty, rhyme and fragrance, which can not only reflect the natural beauty of nature, but also reflect the artistic beauty of human ingenuity. Literati in China often personified plants, and produced some emotion or realm from association. Plum blossoms are beautiful and elegant, bamboo joints are tall and straight, orchids are elegant and elegant, chrysanthemums are elegant and elegant, and there are Mei Lan, Zhu Ju and four gentlemen in the painting. Lotus is also a gentleman in flowers when it comes out of mud without dyeing. In addition, there are rich peonies, acacia of red beans, harmonious crape myrtle, and magnolia flowers with delicate fragrance like orchid, just like slim girls. Flowers are a symbol of beauty, which embodies people's spiritual civilization. People often regard flowers as a symbol of beauty, happiness, auspiciousness and friendship, and it has become a habit to take them as gifts in occasions such as celebrating weddings, birthdays, banquets, visiting relatives and friends, visiting patients, welcoming guests, festive festivals and international exchanges. 2. Flowers can improve environmental quality and physical and mental health. Planting flowers and trees can improve the environment, including adjusting air temperature and humidity, shading, wind and sand fixation, soil and water conservation and so on. Flowers can absorb carbon dioxide and increase oxygen, thus purifying the atmosphere, make the air fresh and pleasant by retaining dust, secrete fungicides to reduce germs harmful to people and animals, resist and absorb various toxic gases such as sulfur dioxide and hydrogen fluoride, and absorb and block noise pollution. Aquatic flowers can purify sewage, and planting flowers and trees with strong resistance can also reduce soil pollution. The green part of flowers and trees also has the function of protecting eyesight, such as looking at the green branches and leaves after intense study and work, feeling relaxed and eliminating fatigue. Some flowers can sensitively appear special ecology under unfavorable environmental conditions and become natural monitors for monitoring environmental pollution. Such as zinnia and cosmos, are sensitive to sulfur dioxide; Hemerocallis fulva and gladiolus are sensitive to hydrogen fluoride; Clove and Petunia are sensitive to ozone. 3. Flower industry is a "sunrise industry". Flower production is a promising commodity production (the development status of poinsettia). Flowers can become a commodity with a large market. Developers naturally produce and provide a large number of trees and flowers, which can not only serve people's life and production, but also bring changes to the agricultural structure, with high economic value. When seedlings, cut flowers, potted flowers, trees, flowers and bonsai enter the international market, a large amount of foreign exchange can also be obtained. Flower production will also drive flower arranging bottles, pots, flower seeds, transportation, sales, preservation, packaging and flower planting tools. The development of other industries has greatly promoted the ceramic industry, plastic industry, glass industry, chemical industry and packaging and transportation industry. Many flowers have various values, such as peony, peony, platycodon grandiflorum, Sedum sarmentosum, chrysanthemum, cockscomb and so on. , both ornamental and medicinal; Jasmine, rose, hawksbill and Zhu Lan can all make tea. Osmanthus fragrans, wintersweet, gardenia, dark red rose, lily, clove, geranium geranium and other extractable essences. Many camellia seeds can be used to extract edible oil. Lotus, persimmon, day lily, sunflower and lily can all be eaten. Many flowers can also provide special raw materials. For example, the fruit of Rosa roxburghii (Rosa roxburghii) can extract extremely rich vitamin C, which is 0/0 times that of kiwifruit. Food pigments can be extracted from sunflower, and the list is endless.

Choosing a good cultural soil is very important. Collect the fallen leaves of broad-leaved trees in autumn, dig the rotten leaves out of the pit in the next spring, turn over the soil every few days, and let them weather and sieve to form rotten soil. Strong water retention, acid reaction and lasting fertility. Second, water. Different flowers have different water requirements. Aquatic plants, for example, cannot live without water for a moment. Seasonal changes: dry and hot in summer, flowers need more water, low temperature in winter, slow growth of flowers, small transpiration and less watering. Soil moisture: For growing flowers, whether planted underground or potted, water them when the soil is dry. In autumn and winter, as the temperature drops, many flowers that are not cold-tolerant should avoid the cold. However, due to improper watering, flowers or leaves fall and even die. The first thing to pay attention to is the watering time, and water as little as possible at night. And those flowers that like dry environment, such as tiger skin palm, must wait until the pot soil is dry from top to bottom before watering. Third, fertilization. In order to ensure the normal growth of all flowers and many flowers, fertilization is essential. Lack of fertilizer: flowers do not need a lot of fertilizer at all stages of life. In addition to timely replenishment of fertilizers during the vigorous growth period, there is no need for too much fertilizer at other stages, such as seedling stage. Understand fertility: Because there are many kinds of fertilizers, we should know which are organic fertilizers, which are inorganic fertilizers and which are compound fertilizers. To understand the role of these fertilizers, we should replenish water in time after fertilization, provide sunshine, shade the shady flowers and avoid the light season.