Cultivation methods and matters needing attention of geomantic evergreen
1, illumination of cultivation method of Evergreen: Evergreen likes semi-shady environment and is afraid of direct sunlight in summer, which is most suitable for greenhouse cultivation. Evergreen plants should shade more than 60% in spring, summer and autumn, and 40% in winter. Too strong light is easy to burn leaves, and too weak light will make it difficult to blossom and bear fruit. The optimum growth temperature of evergreen is 15 ~ 18℃, and it should be placed in the sunny place in winter. The temperature shall be kept above 10℃, and the minimum temperature shall not be lower than 5℃. Evergreen plants cultivated in the Yangtze River basin can overwinter in the open air. Although the leaves suffer from freezing injury, new leaves can germinate again in the next year.
2. Evergreen cultivation method Water fertilization: During the evergreen growing season, apply liquid fertilizer every 10 ~ 15 days. In summer, it is necessary to strengthen ventilation, prevent heatstroke and cool down, and provide sufficient water. It is best to water the basin soil 1 ~ 2 times a day to keep the humidity of the surrounding air at all times, which is beneficial to plant growth; In winter, when evergreen enters dormancy, it is necessary to reduce watering and stop fertilization.
3. Propagation and cultivation methods of Evergreen: Evergreen is usually propagated by sowing and dividing plants. Generally, seeds are sown in March-April and planted in flowerpots with good soil. After watering, temporarily put it in the shade and keep it moist. It can germinate in about 25 days at 25-30℃. Evergreen trees can cut off newly sprouted roots and some lateral roots with a sharp knife in spring and autumn, apply plant ash to the wound, plant it in a pot, water it slightly, put it in the shade, and water it 1 ~ 2 days. You can also divide the whole plant into several parts, wait for the wound to dry for a day, then apply plant ash, and then plant it in a pot for management.
4. Planting method of Evergreen: Evergreen should be planted or ploughed in spring. Not strict with the soil, but afraid of water accumulation. Hard clay and alkaline earth should be avoided when planting or potted evergreen plants on the ground. Potted Evergreen is generally planted in the mixed soil of Gaza, which can be potted, cultivated in the open field in the south and cultivated in the greenhouse in the north. It is best to change the soil 1 time once a year and the pot 1 time twice a year, and replenish new culture soil in time to ensure evergreen growth.
5. Pruning of Evergreen cultivation methods: In order to maintain the good form of Evergreen and improve its ornamental value, with the continuous growth of the plant, the yellow leaves, residual leaves and some old leaves at the lower part need to be pruned in time. Family potted evergreen can wipe the leaves of evergreen with a soft cloth dipped in beer, which can not only wipe off dust, but also supplement nutrients to the leaves and make them brighter and cleaner.
6. Pest control of evergreen cultivation methods: Evergreen is often prone to leaf spot, anthracnose, brown spot and other pests and diseases. In case of diseases, attention should be paid to frequent ventilation and light transmission, no water accumulation, timely cutting off diseased branches and leaves, spraying appropriate amount of drugs for sterilization and disinfection to ensure the normal growth of plants; In case of pests, corresponding chemicals should be sprayed in time to kill them. If there are few pests and the impact is not great, then you can scrape the insects off the plants with bamboo pieces.
Matters needing attention in evergreen culture:
1. soil: sandy loam rich in humus should be selected as culture soil, and the soil PH should be controlled at 6 ~ 6. It is beneficial for it to fully absorb nutrients.
2. Evergreen prefers a semi-cloudy, warm and ventilated environment, so the temperature should generally be controlled above 10℃, and all other varieties are kept at 10℃ ~ 32℃ except Eupatorium odoratum, which is slightly cold-tolerant. You can maintain it in the sun in winter, and resolutely avoid direct sunlight in summer. In winter, indoor ventilation is poor, and scale insects often occur. Immediately after discovery, use 100- 150 times of water to brush it off or spray 20 # petroleum emulsion to kill it.
3. Evergreen likes humidity and is not drought-tolerant, but watering is best done when the surface of basin soil is dry. Too wet waterlogging will rot the root system (generally, the root system is fleshy), and it will wilt due to large transpiration during drought.
4. Fertilization is generally carried out when the temperature rises to 65438 08℃ in spring, and fertilization is not needed when the temperature is high in summer and low in winter.
5. If evergreen grows well and leaves are green, clean and wipe the dust on the leaves in time. In addition, if the leaves are yellow and brown, they should be trimmed in time to avoid unnecessary consumption of too many nutrients.