How to raise the emerald tree (Hainan bean tree)? What are the breeding methods and matters needing attention? Is it blooming?

Emerald trees are also common in home potted plants. Emerald flowers and leaves are strange and changeable, their posture is whirling, and they are very resistant to shade, so they become the first choice for indoor plants. How to raise the emerald tree? What are the breeding methods and matters needing attention?

Brief introduction of emerald

Emerald, originated in tropical South Africa, the scientific name Xilin taro, commonly known as "emerald", also known as long heart leaf vine green velvet, long heart leaf vine green velvet, Hainan bean tree, is a kind of foliage plant, it is not uncommon in the origin, but it is very difficult to bloom in the north, just like the iron tree flowering is very rare. The incubation period of emerald is about two months, but the florescence is only 12 hours, which is extremely precious, and the fragrance of flowers has a strong germicidal effect. The emerald forest taro is a trailing species with stout stems and air roots on the nodes; the leaves are long heart-shaped, 25cm long, 35cm long and 12cm 18cm wide, with no end and tip, and the base is deep heart-shaped, green, entire and shiny. The tender shoots and leaf sheaths are green.

In China, it is mainly distributed in Guangdong, Hainan, Yunnan, Guangxi and other provinces, with an altitude of 300m to 600m.

Culture methods of Green Treasure trees

1. Warm and hot environment: the suitable temperature for growth is 20 ℃-21 ℃ in daytime and 18 ℃-19 ℃ at night. In midsummer, the temperature should be controlled below 27 ℃ as far as possible. When the ambient temperature is very high, it is necessary to build a shed for shade. To increase the humidity of the environment and leaves, it is best to maintain a greenhouse temperature of not less than 8 ℃ and a minimum of 5 ℃ during overwintering, so as to avoid freezing injury.

2. Light: it is a light-loving plant, and it can tolerate shade slightly. Full-day sunshine or semi-overcast environment is available. But don't let the sun shine directly in summer, build a shed to keep out the sun. When potted plants are placed indoors, it is best to put them in front of a window with sufficient light or on a balcony to receive semi-overcast or scattered light. If you put it in a dimly lit room for a long time, it is easy to cause fallen leaves. When the family pot is cut, it can be placed in front of the window or in front of the balcony during the overwintering, so that it can receive more light.

3. Humidity: like relatively humid soil and cultivation environment. The air humidity should generally be kept between 70-80%, and the maximum should not exceed 85%. If placed in the family, plants can often be sprayed with slightly warmer water to maintain their elegant appearance and increase the humidity of the environment.

4. Matrix: the matrix with loose, permeable and good drainage should be selected, which can be prepared with imported matrix or domestic peat soil with perlite and vermiculite, or mixed with rotten leaf soil and river sand. At present, the popular cultivation method in the market is to cultivate one or two plants in each pot, and the plant height in each pot is above 70cm.

5. Fertilizer: the growth is relatively rapid, and sufficient nutrients are needed to ensure exuberant growth, so it is necessary to apply fertilizer frequently during the growing period, generally using mixed fertilizers with nitrogen, phosphorus and potassium of 20-10-10 or 15-15. Diluted thin fertilizer water can also be used instead of clear water to irrigate basin soil.

6. Insect diseases: the most common aphid is the green peach aphid. Symptoms include wrinkled leaves and usually crystal honeydew spots. Aphids can be seen with the naked eye. Control methods: spray with zinc parathion, omethoate, dimethoate and so on.

Matters needing attention in Green Treasure Tree Culture

When raising green trees, we should pay attention to timely watering to keep the basin soil moist without stagnant water. In addition, Lubao tree likes fertilizer, and liquid fertilizer is applied once a week in the growing season, which makes its leaves green and bright, and its ornamental value doubles. In addition, the indoor temperature of raising green trees at night in winter should be kept at 15 to 18 degrees.

What if the green treasure tree loses its leaves?

① leaf spot disease: in the environment of high temperature, high humidity and poor ventilation, its leaves are susceptible to leaf spot disease, which leads to the loss of leaves of Lvbao trees.

Prevention and treatment: strengthen ventilation and light transmission to avoid long-term stagnation of water on the leaf surface. It is found that a small number of diseased leaves should be removed and burned in time, and 50% carbendazim wettable powder 600 times should be sprayed regularly, once every semimonthly, 3-4 times in a row. When the family pot is cut, a small number of disease spots on the leaves of individual plants can be smeared with Dakening cream ointment.

② scale insects: under the conditions of high temperature, high humidity and poor ventilation, especially in the shed for a long time in autumn and winter, the stems and leaves of green treasure trees are prone to the harm of scale insects, which will also lead to the phenomenon of leaf loss.

Prevention and control methods of green trees: strengthen ventilation and light transmission, and pay attention to the control of environmental humidity. When a small amount of live worms are found, they can be wiped off with a wet cloth in time, or they can be glued away with transparent tape. During the peak incubation period of nymphs, the nymphs can be sprayed with 1500 times of chlorpromazine wettable powder, and other agents such as Guoguang scale must die, methamidophos and so on.

③ mites: the main harmful symptoms are the wrinkling, curling and uneven surface of the new leaves of the green tree. Generally, the occurrence time is from June to September. High temperature and dryness are beneficial to the occurrence of a large number of insect pests, and the occurrence of insect pests is less under humid conditions.

Prevention and control methods: mainly use acaricidal agents such as mijing, dabalin, nisolang and so on.

④ aphids: the most common aphid is the green peach aphid. Symptoms include wrinkled leaves and usually crystal honeydew spots. Aphids can be seen with the naked eye.

Control methods: spray with zinc parathion, omethoate, dimethoate and so on.

Does the emerald tree bloom?

The florescence of emerald is autumn, and the flower is solitary to the upper leaf axil, which is composed of flame bud and white fleshy inflorescence. The flowers are enlarged, pointed like chili peppers, 15-20 cm long and 12-15 cm long. When the flowers bloom, they are green outside and red or white, with strong tea flavor, refreshing and clear-eyed. There is a stamen column, halo milky white or white, with a thick middle finger, shaped like a corn cob.