Calamondin orange (Citris mitis) is challenging to grow in a home environment. It is hardy to 20°F., more than most other true citrus (USDA hardiness zone 8). It does not grow well in temperatures below 45ºF. In temperate regions calamondin spends the active growing months (May – October) outdoors either in direct sunlight (in northern areas) and in half day shade (in […]