The balcony flowers should pay attention to the use of water and the methods of preventing flower diseases and insect pests.

In the middle of winter, domestic potted flowers enter the room, and many of them move to the balcony. It is worth noting that the flower watering and spraying on the balcony should be very fastidious.

First, pay attention to water temperature, water temperature and soil temperature, air temperature should not be too different. Gas is particular about the watering time, which can be carried out before 10:00 and after 4 p.m. While watering, we should not neglect to loosen the soil for potted plants, and it is best to put a small amount of ferrous sulfate into some ornamental plants.

In addition to often spraying water, for some flowers that require high humidity and more expensive flowers, such as camellias, rhododendrons and orchids, they can be covered with plastic film, which can not only increase humidity, but also prevent cold and dust. Generally, the cover can be made of bamboo or wire to make a shelf, which can be round, flat, one-sided oblique roof ridge, or other shapes that you tie according to space, habits, and hobbies, and then cover it with plastic film, paying attention to leaving vents in case the air is blocked and the humidity is too high, causing flowers to rot.

In addition, fertilizing flowers and trees in winter is very important, but not all flowers have to be fertilized. Fertilizer should be stopped for dormant and semi-dormant balcony potted plants, and 0.3% urea solution can be sprayed or poured on exuberant foliage plants, or multi-component compound fertilizer particles can be applied on the potted surface. Flowers and trees that mainly watch flowers and fruits, such as Magnolia, Milan, pomegranate, crape myrtle, jasmine, etc., should continue to apply available phosphorus and potassium fertilizer. After each pruning, thin fertilizer can be applied to hammer elm, sparrow plum, holly, Luohansong, triangular maple, bayberry, melon seed and yellow poplar, etc. Due to the withered leaves of some flowers in autumn and winter, timely pruning, especially tree stump bonsai, need more heart dripping or pruning, but also to do a good job in pest control, through the use of trichlorfon and other drugs to prevent the emergence of diseases and insect pests.