Armando Maravilla presents: Edible plants you can grow at home: Kumquat
It is not known in the wild, it is presumed that it is a species native to China where there are records of its cultivation since the 12th century. In Japan it was already a settled crop by the 18th century.
It requires good exposure to the sun, sheltered from the wind, and a light, drained, fresh and neutral soil. The kumquat needs space, so it is ideal as an isolated specimen.
Lorenzo, Julio. “El Naranjo Enano”. scribd. https://es.scribd.com/document/441432202/El-naranjo-enano (Consultado el 02-08-2022)