There are several reasons why a kumquat loses its leaves. In winter this is rarely a cause for concern, but in summer you should take appropriate measures so that you can enjoy your exotic plant for a long time.

If a kumquat tree loses leaves in winter, that's perfectly normal. It serves to protect the plant. The metabolism is shut down. Less nutrients are absorbed, so not as many nutrients should be consumed. The darker the location, the more leaves the plant will lose. Therefore, a kumquat should be as bright as possible in winter.
In summer, a kumquat mostly loses its leaves if the watering is not optimal. Then it is either watered too much or too little, or the watering water contains too much lime. Another reason could be low humidity.
What do you do when the kumquat loses its leaves?
If your kumquat is shedding its leaves, check your watering habits first. The kumquat needs plenty of water, but it doesn't like too much either. Above all, it does not tolerate waterlogging, then its roots will rot. Does the plant pot have a drainage layer or is the drain blocked? Then you should take immediate action.
If the humidity is too low, it helps to carefully spray the plant with lime-free water or to place a container filled with water near the plant. Humidity increases due to evaporation. Another option is to place the bucket in a larger bucket filled with water, but elevated so that the excess water can drain freely and no waterlogging forms.
If you want to prevent leaf loss in winter, make sure that the location is as bright as possible. It does need the cool temperatures during hibernation so that it blooms again the following year. However, she is not used to the dark season and the associated lack of light in her home country.
The essentials in brief:
- Check the lime content in the irrigation water
- Check pouring amount
- Check humidity
- create bright winter quarters
tips and tricks
The most common causes of leaf loss in summer are incorrect watering.