The northern region is generally dry, the soil is alkaline, and the temperature is generally low in winter, even if there is indoor heating, it will be very dry, and it is not well ventilated.Therefore, it is suitable for breeding orchid varieties with relatively cold resistance, strong adaptability and low soil requirements.To sum up, the northern region can raise two kinds of orchids, Jianlan and Cymbidium, which have strong adaptability and are relatively cold-resistant, the lowest can be two degrees below zero, that is, we need to pay attention to water control.
Watering: In raising orchids in the north, it is necessary to adjust the way in good time according to seasonal changes, and so is watering.In spring, orchids enter the growth period with the rise of temperature, and can be watered once a day or two.Summer is also a period of vigorous growth of orchids, which can be watered once in the morning or evening.During the rainy season, attention should be paid to controlling the amount of watering according to the humidity of the pot soil.In autumn, the temperature has begun to decrease, to reduce the frequency of watering, you can water once every two or three days.In winter, the temperature is very low, you can water once every five to seven days, but Cymbidium and Cymbidium are more cold-resistant, winter can also grow, you can give a little more water.
Illumination: Orchids generally prefer a cool environment to direct sunlight.Therefore, in April and May, orchids can see the sunshine before 9 A. M. and after mid-May, orchids should be placed in a cool and ventilated place for maintenance.In winter, orchids can be maintained in sunny places, so that plants can receive more light, which can promote the differentiation of flower buds.
Fertilization: Fertilization for orchids can not be thick fertilizer, only thin fertilizer.Newly planted orchids can not be fertilized in the first year, and then fertilized after the Qingming Festival in the second year, until the Beginning of Autumn.Maintenance of orchids in the north can be applied once or twice a month decomposed griddle cake fertilizer, each time before fertilization need to control water for two days, until the pot soil is somewhat dry before fertilization.The next morning after fertilizing, water it once.
