TheNaturePlanet

Phalaenopsis is a plant native to tropical and subtropical regions. It has relatively strict temperature requirements. Understanding its suitable growth temperature and cold tolerance is crucial for the successful cultivation of this plant.
The ideal growth temperature of Phalaenopsis is between 18°C and 33°C. This temperature range is closest to its original ecological environment. Within this temperature range, Phalaenopsis can carry out photosynthesis and flower bud differentiation normally, thus maintaining healthy growth. Specifically, Phalaenopsis grows best in an environment of 20°C to 28°C, and the most suitable temperature is 23°C to 25°C. When the temperature is higher than 28°C, it is prone to problems such as dry leaves, withered flowers and broken flower stalks. When the temperature is lower than 15°C, the growth rate of Phalaenopsis will significantly slow down, and it is prone to diseases and even death. Therefore, during the cultivation process, it is necessary to ensure that the environmental temperature of Phalaenopsis is suitable.
Phalaenopsis is a tropical plant with poor cold resistance and has limited tolerance to low temperatures. Generally speaking, at 13°C, Phalaenopsis is already approaching the lower limit of its growth temperature. Although it may not die in a short period of time, if it is exposed to this temperature for a long time, the growth of Phalaenopsis will be seriously inhibited, and phenomena such as yellowing and falling leaves will occur. Therefore, 13°C is not the temperature at which Phalaenopsis can grow normally.
As for the minimum cold tolerance temperature of Phalaenopsis, the data given in different materials vary slightly. Some believe that its minimum cold tolerance temperature is above 5°C, and below this temperature, the growth of Phalaenopsis is likely to be hindered and even frostbite may occur. Others believe that its cold resistance is slightly stronger, but it is generally not recommended to expose Phalaenopsis to an environment below 10°C. Overall, the minimum cold tolerance temperature of Phalaenopsis should be maintained between 5°C and 10°C, depending on factors such as the health of the plant, cultivation conditions and environmental humidity.
In order to ensure that Phalaenopsis can survive the winter smoothly, the temperature of its growth environment should be kept within a suitable range. Here are some winter cultivation suggestions:
Temperature control: In northern regions, the temperature drops sharply in winter. It is necessary to ensure that Phalaenopsis is in a warm environment. The ambient temperature can be maintained above 15°C by using heating, heaters or air humidifiers to avoid cold air directly blowing on the plants.
Avoid low temperatures at night: Night temperatures are usually lower than daytime temperatures. Therefore, at night, Phalaenopsis should be kept away from windows to prevent cold air currents from having an adverse effect on it.
Increase humidity: Indoor air is generally dry in winter, while Phalaenopsis likes a humid environment. Air humidity can be maintained by spraying water regularly, using a humidifier or placing the plant on a humid tray.
Moderate watering: In winter, the temperature is low and the growth rate of Phalaenopsis slows down, so it requires less water. Overwatering should be avoided, and the potting soil should be kept slightly dry to prevent waterlogging from causing root rot.
In conclusion, Phalaenopsis cannot grow normally at 13°C, and its minimum cold tolerance temperature should be maintained between 5°C and 10°C. During the winter cultivation process, attention should be paid to temperature control, humidity increase and moderate watering to ensure that Phalaenopsis can survive the winter smoothly and maintain healthy growth.