Overwintering citrus plants!

A very important factor is providing as much daylight as possible. Citrus plants are not particularly sensitive to the cold, especially when exposed to it in an enclosed room with high humidity. The maximum cold resistance in such conditions is -7 to -9°C. In winter, you need to watch out for mould growth; as soon as you notice it, wipe it off the plant immediately using a mildly alcoholic solution. Do not spray the plants in winter, as this can be dangerous below 15°C and the leaves can easily become chilled. Water only minimally, using warmed rainwater or melted snow. It is very important that the water feels slightly lukewarm to the touch. If the water is very cold, the leaves will immediately drop and root rot may begin, as the root system of citrus plants becomes corky during this period. For root-sensitive rootstocks, such as aurantium varieties, the roots should be kept dry. The small amount of water needed to maintain leaf stability is absorbed from the humidity in the air.
When temperatures rise above freezing, regular daily ventilation becomes important. The most suitable time for this is between 12 noon and 3 pm. This allows the air to circulate and reduces humidity. They do not need heating, and there is no need to pamper them during winter – this is the secret to successful cultivation.