Planting Tips

Chapter 6 What is the comprehensive effect of humidity and temperature on flower growth

To grow flowers well, in addition to mastering watering techniques, you should also pay attention to the relationship between air humidity and temperature and the proportional relationship between the two on the growth of flower plants.For example, for grass flowers native to Europe, when the temperature is 15-20°C, the air humidity should be 60%-70%; when the temperature is 20-25°C, the relative air humidity should be 70% About %: Tropical foliage plants such as taro, etc., when the temperature is between 25°C and 30°C, the relative humidity of the air should be between 80% and 90%.In North China and Northeast China, summer is hot and humid, while winter is low and dry.The high temperature and high humidity in summer often easily cause diseases and insect pests, which is undoubtedly unfavorable to the growth of flowers.Therefore, in summer, it is necessary to do a good job of ventilation and ventilation, and try to reduce the air humidity so that the flowers can grow in a cool environment.In winter, the air is very dry both indoors and outdoors. In order to meet the humidity requirements of general indoor flowers, artificial or automatic spraying devices can be installed indoors to automatically adjust the humidity.In addition to watering once a week, mist water can be sprayed once a day to increase humidity. This is a regular management task that cannot be ignored in raising native southern flowers in the northern region.

As for which flowers need to be sprayed with more water and how much water should be sprayed, it depends on the specific situation.What is the effect of air humidity on flowers There are many kinds of flowers, and the requirements for air humidity are also different due to the different climatic conditions in the place of origin.In cultivation, it is usually divided into three categories according to the requirements of flowers for air humidity.

(1) Flowers that like dampness, such as ferns, araceae flowers, orchids, hostas, begonias, rhododendrons, etc., require the relative air humidity to be kept at 60% to 80%.If such flowers are cultivated in a dry environment for a long time, the leaves will turn red or yellow, become smaller, thinner and curled, or the edges will be dry and burnt, which will affect flowering and fruiting.

(2) Drought-resistant flowers such as cactus, cactus, agave, aloe, Lithops, etc. In the northern region, the general indoor air humidity can meet their growth requirements.If this kind of flower is kept in a humid environment for a long time, it will often cause root and stem rot.

(3) Neutral flowers The air humidity requirements of such flowers are between the above two, such as white orchid, Milan, jasmine, michelia, hibiscus, bougainvillea, osmanthus, palm, etc.

The air humidity in spring and autumn in northern regions is very low, which is not suitable for the growth and development of southern flowers; in winter, indoors are heated by stoves or radiators, and the air is drier. Wet flowers are grown under a cover, which can maintain a certain temperature and humidity, and can also prevent pollution from smoke and grease.In the north and the south, flowers that like shade and humidity can be placed in the shade of a tree or under a shed in summer to avoid direct sunlight and dry wind.You can also often sprinkle water around the potted flowers, or spray water on the leaves to increase air humidity and reduce the temperature.

(End of this chapter)