Zinnia belongs to Lagerstroemia of Lysimachiaceae, which is one of the common lianas in tropical areas. Its unique bright flowers, such as red, pink and purple, and its long-term ornamental period enjoy a high reputation in the horticultural sector. This paper will introduce the plant characteristics, growth environment, cultivation techniques and ornamental value of Melaleuca, in order to provide some relevant knowledge and guidance for friends.

1. Plant characteristics: Zinnia is a tropical evergreen vine with many kinds, including common safflower and various pink and purple varieties. The biggest feature of flowers is that inflorescences are surrounded by highly decorated leaves (bracts), rather than real petals. These bracts are as bright as flowers, which increases the ornamental effect. The flowering period of Lagerstroemia speciosa lasts for several months and can continue to open.

Second, the growth environment: Hundred Days Red likes sunny, warm and humid environment, suitable for growing in areas where the temperature is above 15 degrees. The requirements for soil are not high, and barren soil can grow. However, it is necessary to avoid being in a humid environment for a long time to avoid root rot.

Third, develop skills:

1. Soil: The suitable soil pH value is 6-7, and it should have good drainage and water retention. In the process of cultivation, appropriate amount of humus and sand can be added to the cultivated soil to improve the soil texture.

2. watering: zinnia likes wet environment, but doesn't like being too wet. Water more during the growing period, but avoid water accumulation.

3. Fertilization: A comprehensive fertilizer with nitrogen, phosphorus and potassium as the main components, applied once a year in February, can promote the growth and flowering of zinnia.

4. Pruning: In the process of cultivation, appropriate pruning should be carried out, the shape of plants should be controlled, and branches should be added to maintain the lush ornamental effect.

5. Change pots: Zinnia grows rapidly, and it is usually changed once a year in spring to maintain a healthy growth state.

Four. Ornamental value: Lagerstroemia indica has extremely high ornamental value. Its flowers are bright and colorful, giving people a pleasant feeling; Its long flowering period makes Lagerstroemia speciosa one of people's favorite ornamental flowers. Can be used for the decoration of courtyards, flower beds, balconies and other places.

Zinnia is a widely cultivated ornamental plant in tropical areas, with bright and beautiful flowers and long flowering period. By understanding the plant characteristics, growth environment, cultivation techniques and ornamental value of Lagerstroemia indica, we can better cultivate and appreciate this plant.