Citrus fortunella or Citrus kumquat is just like other citruses a delicious smelling bush or tree on your terrace.
The sweet scent of the leaves and the blossom reveal which fruit set will soon appear.
In the case of the Citrus kumquat, the small 3 to 4 cm oval fruits are the peel of which resembles that of the mandarin.
The fruit of the Citrus fortunella is to eat (tastes between mandarin and orange), but for the holidaymakers to Greece it is probably also the famous liqueur "Kumquat".
In the spring the kumquat can go outside again, do this after there is certainly no chance of frost.
Now the water need may be increased again, but keep it moderate (not overdoing a lot).
Also give liquid fertilizer in the irrigation water to the plant every 3 weeks, from April to the end of September. This will immediately react and new shoots begin to grow.
Grow shoots too long to your liking than the citrus cut back in the fall. This way you keep a desired shape.
In winter, allow the citrus to overwinter in a place that is as light as possible in the winter.
Give little water, once a month is sufficient and no more fertilization.
Winter hardiness zone 11 (+ 2ºC).