- Watering a kumquat
- Repotting a kumquat
- The kumquat in winter
- The diseases of a kumquat
- Do you need to prune a kumquat tree?
- tips and tricks
The kumquat or Asian dwarf orange is ideal as an ornamental tree or houseplant and even bears edible fruit with good care and sufficient fertilization. However, it does not reach its original size of up to five meters in European latitudes.

Like other citrus plants, the kumquat does not like drafts or cold winds. In the summer it can stand outside as a container plant on the balcony or terrace. She likes it warm and sunny. However, it is not frost hardy and therefore needs suitable winter quarters.
The most important care tips in brief:
- moderate to high water requirement
- regular fertilization
- very sensitive to lime
- warmth-loving
- Bears edible fruit if cared for properly
Watering a kumquat
The kumquat is one of the thirsty plants, it should be poured abundantly in spring and summer. Make sure that you regularly add a special fertilizer for citrus plants. This supports flowering and, above all, fruit formation in later years.
The root ball must never dry out completely. If the pH of the irrigation water is too high, your kumquat can die. Avoid waterlogging at all costs, otherwise the roots of your kumquat tree will rot. That is why a drainage layer in the plant pot is absolutely necessary so that the excess water can drain off well.
Repotting a kumquat
Repotting a kumquat is only necessary if the plant pot is too small, otherwise an occasional replacement of the potting soil is sufficient. It is best to do this at the beginning of the growing season in spring. Planting in the garden is not recommended as the kumquat is not frost hardy.
The kumquat in winter
For a short time, the kumquat even tolerates a light frost. However, it is better to overwinter frost-free, cool and bright. Because the roots must never freeze. However, temperatures just above the frost line are sufficient. Fertilization is not necessary during the winter and watering can be reduced. Overwintering in a greenhouse or conservatory is ideal.
The diseases of a kumquat
As an exotic plant, the kumquat is unfortunately susceptible to diseases and pests. Red spiders and scale insects are particularly annoying. Check your kumquat regularly for pests, wash off infested parts of the plant and remove the pests. However, the best protection is correct care, because weakened plants are particularly vulnerable.
Do you need to prune a kumquat tree?
A kumquat tree should be pruned regularly, especially when space is limited. Although it doesn't grow as fast in cooler areas as in Asia, it can still reach a considerable size. The best time for pruning is spring after the winter break. The pruning also promotes the formation of a beautiful crown.
tips and tricks
Good care may be rewarded with sweet and sour fruits. If they yield to the touch of a finger and have a strong orange color, they are ready to be harvested.