What are the characteristics of annual flowers

Annual flowers have their own unique characteristics, such as short growth cycle, short flowering cycle, easy to control florescence and so on. It has different ornamental value from perennial herbaceous flowers.

First, the characteristics of annual flowers

1. Annual herbaceous flowers are herbaceous flowers that can complete their whole life cycle in a growing season. The life cycle of this kind of seedlings from seed to seed is within the first anniversary, sowing in spring, harvesting in autumn, or sowing in autumn, and harvesting at the end of spring in the following year.

two。 Annual flowers are generally sown in spring, blossom and bear fruit in the same year, harvest seeds, complete their life cycle and die. This kind of flowers differentiate from flower buds shortly after seedling growth until they blossom and bear fruit in autumn. Such as marigold, zinnia, cockscomb, impatiens, a string of red, thousand-day red, half lotus, chrysanthemum, Persian chrysanthemum and so on. Most of the annual flowers like sunshine and well-drained and fertile soil, and the flowering period can be regulated by adjusting sowing date, light treatment or applying seedling growth regulators.

3. There are many kinds of flowers to choose from, which are easy to form a rich landscape. However, most species have strict requirements on soil and water in the environment.

4. The flowering period of annual bulb flowers is easy to control, neat and consistent. As long as the size of the ball is the same and the planting conditions, time and methods are the same, it can blossom at the same time.

5. Note that sometimes there is no complete separation between annual and biennial, biennial and perennial, such as calendula, daisy, and melon and leaf chrysanthemum, which are sown in autumn and form seedlings in that year, and after overwintering, they bloom in the spring of the following year, showing the typical characteristics of biennial flowers, but these flowers can also bloom when they are sown in spring.

II. Garden application characteristics of annual flowers

1. Annual grass flower is an important flower in summer landscape.

two。 Bright and beautiful colors, luxuriant and neat flowering, good decorative effect, key beautification is often used.

3. It is a common flower in the regular application form of flowers.

4. Easy to obtain seedlings, convenient for large area use, quick effect

5. The florescence of each kind of flower is concentrated, it is convenient to change the species in time, and keep a good ornamental effect for a long time.

6. Some species can also be self-sown and multiply, forming wild interest.

7. Vine species can be used for vertical greening, with quick effect and low requirement for support strength.

8. In order to ensure the viewing effect, it should be replaced many times in a year, and the management cost is high.

9. There are high requirements for environmental conditions, so it is necessary to choose a good planting site when planting directly.

III. More representative annual flowers

1. Hairy-leaf Jinguang chrysanthemum, also known as black-hearted chrysanthemum, is a perennial herbaceous flower of the genus Chrysanthemum of Compositae, often cultivated as annual or biennial herbaceous flowers. The plant is 80 to 100 cm tall, the whole plant is covered with rough setae, branching near the base. Black-hearted chrysanthemum flowers are large, colorful and have a long flowering period. they are often used as flower beds and flower diameter materials. they can also be used as potted family ornamental or cut flower materials.

two。 Persian chrysanthemum, also known as Qiuying, big Persian chrysanthemum, autumn cherry, Gesang flower, eight-petal plum, broom plum. Compositae: Compositae, Autumn British Persian chrysanthemum is an annual herb, plant height 30~120cm, flowering in summer and autumn.

3. Pineapple, also known as Miloson, commonly known as pentagram flower, lion grass. Like light, like warm and humid environment, grow in areas ranging from 0 meters to 2500 meters above sea level, not cold-resistant, potted plants must stand for its winding, very delicate and beautiful when blooming.

4. Qili incense, alias moon orange, Shili incense, stone pine, Manjiang incense, Qianli incense, stone pepper, nine autumn incense, nine trees incense, Wanli incense, mountain incense, golden cinnamon, mountain yellow bark, thousands of eyes. The flowers are white and fragrant. It has the unique aroma of Rutaceae. After flowering, the fruit is green at first, and the berries turn reddish brown when ripe. It can be used as medicinal material.

Annual flowers often need to be replaced because of their short flowering period, but different and new flowers can be seen every year, so they have different ornamental value from perennial herbaceous flowers, so they are especially suitable for friends who like constantly changing.