Written by Maggie
Jan 13 2021
Chinese Evergreen, scientific name: Aglaonema commutatum. Chinese evergreen is the most beautiful and ornamental among the plants of this genus, and is called the "queen" of the living room. Potted plants are generally used as beautiful and elegant indoor foliage plants.
Chinese evergreen distribution: tropical Africa, the Philippines, Malaysia.
Chinese evergreen growth habits: resistant to half shade, sun light is too strong, but the light is too dark, will also lead to leaf fading.Like water wet, from March to August growing season to water. In summer, water should be sprinkled frequently to increase the environmental humidity. Chinese evergreen loves high temperature, not cold, suitable temperature for growth 20-30℃. The lowest overwintering temperature is above 12℃.
Leaves: Chinese evergreen leaves are narrow and long in shape, the key is that its veins are white, the name should be from this, some people also call it "Chinese cabbage". It varies in shape and color, often with different markings on the leaf surface. Flowers: fleshy panicle flowers several aggregates. Fruit: Oval berries, orange or red when ripe, with a single seed. Chinese evergreen plants are poisonous, and can not be ingested by mistake. Ingestion will cause tongue inflammation, stomachache, diarrhea, etc., and should immediately go to the hospital for treatment.
Chinese evergreen likes bright light and a well-ventilated environment. In spring, the illumination is controlled at 15,000-20,000 Lux; In summer, due to the high temperature, high temperature and humidity, shading and ventilation should be strengthened. It is ideal to control the lighting in the range of 10,000-15000LUX. In autumn and winter, the temperature is lower, and the illumination is controlled to 20,000-30000Lux or full sunshine. Too strong light leaves will be yellow and green, too much shade will be very long, prostrate, affect the ornamental effect.
Chinese evergreen like high temperature, not cold resistant, suitable temperature for growth 20-30℃. The lowest overwintering temperature is above 12℃. Once affected by the cold leaves yellow wilting, terminal bud necrosis.Winter maintenance needs heating equipment. If there is no heating facilities, it can use double insulation facilities, winter afternoon in the temperature drops to 22-24℃ to seal the shed in time (the north of the general greenhouse to seal, the south of the greenhouse can be appropriate to leave some space, to facilitate the air flow in the shed, the control of humidity in the shed is too large). In summer, if you use a simple shed for planting, the film should be lifted on sunny days, and the roof of the shed should be covered with a layer of shading net with a density of 75%. A layer of 50% shading net can be added in the shed, so that it can be used for ventilation and cooling. But in continuous overcast rainy days to cover the film, prevention and control rain too much to cause the matrix in the basin long-term too wet and cause rotting root, rotten stem phenomenon. In summer we can strengthen shade and ventilation.
Chinese evergreen likes high temperature, high humidity, half shade or shade environment, and humidity can be maintained at 60%-70%.
At first, the disease spot is a small brown spot, and the surrounding water - impregnation faded green, and a wheel - striated expansion, round to oval, brown inside the edge of gray white. In the late stage, dark brown mildew appeared in the center of the lesion, which turned into dark brown mildew layer under humid conditions. The method to prevent and cure this disease is to remove the diseased and residual leaves in time. With 800 times of mancozeb prevention and treatment, once a week, continuous 3-4 times.
It mainly occurs on leaves, but can spread to petioles in severe cases. In the early stage, the lesions were water-impregnating yellow macules, and after expansion, they were oval to irregular brown or yellowish brown, slightly wheel-striated. In the late stage, the lesions were connected into a piece of dry, and small black spots with wheel-striated arrangement were produced. This kind of disease is mainly because ventilation is not good, when there is scale insect harm advantageous disease occurrence. The methods of prevention and control of this disease are to strengthen conservation, increase phosphorus and potassium fertilizer; At the beginning of the disease we can use 1000 times chlorothalonil to prevent and control, once a week, 3-4 times.
Air humidity is dry, easy to occur on the bottom leaves and dead leaves. We can use carmite 2000 times.
Chinese evergreen is called the "queen" of the living room. Potted plants are generally used as elegant indoor foliage plants, which have high ornamental value.