The Kumquats will grow very nicely , and stay smaller in a large pot. I've had mine in the same pot for about 20 years and produces nicely. Even if you don't use the fruit, it is very decorative. Can't get a picture today, as it's buried by other plants, and 3 days of rain makes it too heavy to drag out in the open. It's in 2 1/2' X 2 1/2' plastic tree pot, and when dry I can drag it around, so it could be protected where winters get cold.
