Dragon's blood tree evergreen shrub, up to 4 meters high, with gray bark. Leaves sessile, densely planted at the top of the stem, thick papery, broad strip or oblanceolate, length10 ~ 35cm, width1~ 5.5cm, the stem base is enlarged, near the base is narrow, the lower part of the midvein is obviously prismatic, and the terminal panicle is 60cm long,/10 ~ 35. These flowers are white and fragrant. Berries are spherical yellow. It belongs to many species and varieties and is used for garden viewing. Sex likes high temperature and high humidity, and likes light, with plenty of light and bright leaves. Not hardy, the winter temperature is about 15C, and the lowest temperature is 5~ 10C. When the temperature is too low, yellow-brown patches will appear at the tip and edge of leaves due to insufficient water absorption by roots, and loose soil with good drainage and rich humus will be preferred. 1, Dracaena is a beautiful and regular plant with colorful leaves. It is an excellent foliage plant for modern interior decoration. Small and medium-sized potted plants can decorate the study, living room and bedroom, and large and medium-sized plants can beautify and decorate the hall. Dragon's blood tree has strong adaptability to light. You can watch it continuously for 2-4 weeks in a dark room, and it can be placed for a long time in a bright room. It is also a first-class choice for furniture decoration. 2. Dracaena can be used for antibacterial and other medical functions, and Dracaena has the highest medicinal value. After being infected by Fusarium graminearum var. Fungi such as Dracaena yunnanensis can form plant defensins and produce red resin. This red resin is the traditional important southern medicine in China-Dragon's Blood (Dragon's Blood), and flavonoids are its main components. A large number of studies have shown that these components have obvious antibacterial, antifungal, antioxidant, platelet aggregation inhibition, antithrombotic and fibrinolytic activities. Modern pharmacological research shows that dragon's blood can treat a variety of blood diseases, cardiovascular diseases, ulcers and inflammation, and has certain anti-aging and anti-tumor effects. 3. It also plays a unique role in geomantic omen. The gate to the south belongs to fire, so plants belonging to fire genus should be planted. Planting dragon's blood tree increases the positive energy of fire, which is beneficial to regulating the health of people's heart and stomach, and also has a regulating effect on some people's negative personalities such as introversion, timidity, lack of courage and lack of confidence in life. The maintenance of Dracaena Dracaena is mainly divided into two links: cultivation and later maintenance. It is a kind of plant that needs to be taken care of, so pay more attention when breeding. 1, mainly divided into two types: cultivation management and fertilizer and water management. Cultivation management: Dracaena likes warmth, is afraid of cold, likes light and is afraid of sunlight, and is most suitable for growing in a warm but not very hot environment. Spring, summer and autumn are the seasons when Dracaena dracunculata grows vigorously. During this period, the breeder must fully meet its needs for water, nutrition and temperature, so that it can grow healthily. 2, the temperature and light should be moderate, and the dragon blood tree likes a warm, humid and sunny environment, but it can also withstand shade. However, if it is kept indoors in a cool environment for a long time, the leaves will fade, so it is best to put the flowerpot on the windowsill in the southeast to fully receive the sun. If you keep the fat dragon's blood tree on the balcony, when the sun is too strong in summer, you should put flowerpots. 3. Dracaena is a plant that can cause insect pests, so pay attention to insect prevention. Dragon's blood tree is easy to grow on balcony or indoor windowsill for a long time because of dry ring cultivation. Red spider, commonly known as fire dragon, belongs to mite pests, which mostly cluster on the back of plant leaves. 4, cultivation must have technology. Humus soil 1 serving, peat soil and river sand can be used as mixed substrates, cultivated under 70-80% shade, and compound fertilizer 1-2 times a month during the growing season to keep the soil moist and spray more leaves in summer.