Orange seedlings like to grow in a warm environment. The optimum growth temperature is 15-28, and the optimum growth temperature is about 20. This temperature is also beneficial to the differentiation of flower buds. The cold resistance of orange seedlings is poor. They like to grow in high temperature environment and have certain heat resistance, so orange seedlings are a kind of plants that are afraid of cold but not hot.

Orange seedlings are afraid of cold.

The cold resistance of orange seedlings is not good. The temperature of citrus seedlings should be kept above 10 in winter. When the temperature is below 5, frostbite may occur. If the temperature drops again, it will freeze to death. In winter, orange seedlings can't spend the winter outdoors, and they will suffer from freezing injury. Therefore, it is necessary to move orange seedlings indoors for maintenance in winter.

Orange seedlings are afraid of heat.

Orange seedlings are not afraid of heat in summer, but they are afraid of sun exposure. In summer, we should take some sun protection measures for orange seedlings, give them enough water and let them grow well.