How to grow green beans

Douban Green (Peperomia tetraphylla), also known as pepper grass, watercress, emerald pepper grass, green leaf Jasper, Douban Ruyi and a column of incense. Originated in the West Indies, Panama, northern South America. It is produced in Taiwan, Fujian, Guangdong, Guangxi, Guizhou, Yunnan, Sichuan, southern Gansu and southern Xizang. Fleshy, tufted herbs, stems creeping, much branched, leaves dense, berries subovoid, florescence 2-4 months and 9-12 months.

Planting

Douban green requires loose, fertile and well-drained soil. When potted, garden soil, rotten leaf soil and coarse sand can be used to prepare nutrient soil at the proportion of 6:3:1.

Watering

Douban green likes to be moist, and should be watered more during the growing period from May to September. When the weather is hot, the leaves should be sprayed or drenched in order to maintain high air humidity and clear leaf patterns and emerald green leaves. In winter, the basin soil should be kept slightly dry to increase the cold resistance of the plant.

Temperature

Douban green prefers warmth, and the optimum temperature for growth is 18-27 ℃, and it should not be lower than 5 ℃ in winter.

Light

Douban green prefers semi-overcast environment and avoids strong light.

Fertilizer

Douban green is the growing period from May to September, during this period, dilute liquid fertilizer dominated by nitrogen fertilizer or flower fertilizer can be applied every 2-3 weeks.

Pest control

The disease is not easy to occur, but if it occurs, it is mainly caused by ring spot, root neck rot and scab.

Ringspot disease: the damaged plants will be dwarfed, twisted leaves and other phenomena, reducing the ornamental value. At this time, the same amount of Bordeaux solution can be used for spray control.

Root and neck rot and scab: 1000 times of carbendazim wettable powder can be sprayed for prevention and treatment.

Reproduction method

Douban green can be propagated by cutting and dividing plants.

Main value

1. Douban green potted plants are small and elegant, with emerald and green leaves, which are very suitable for desks, coffee tables, offices and other places. Try to keep it indoors where there is bright scattered light throughout the year to prevent overgrowth. Summer should be placed on the north-facing balcony.

two。 Douban green has a certain purification effect on formaldehyde, xylene and secondhand smoke, and is the best plant for radiation protection.