Calypso is a genus that includes few species of terrestrial orchids, more rarely epiphytic, originating in North America, Canada and the countries of the far north of Europe. The plant is small, usually does not exceed 15-20 centimeters in diameter, and produces a single leaf per bulb, which generally dries completely in the hottest periods of the year, dark green, shiny, oval; at the beginning of spring, right at the end of the winter rigors, it produces a single fragrant flower, with sepals and pink-purple petals, and white labellum, dotted with purple and sometimes striped with violet-brownish, but not in all species. These orchids tend to form tufts made up of several specimens, but it is not uncommon to find solitary plants.
Contrary to many other orchids, those of the calypso species come from cold places, therefore they hardly bear the climatic conditions of our homes, for this reason they can be grown in the ground, or in containers to be kept on the terrace. Calypso are used to undergrowth, so they don't like sunlight, preferring shady places to develop better. They do not fear the cold, and the leaves vegetate perfectly even under the snow; rather the calypso can't stand the heat, it is therefore advisable to keep it in the shade even in spring, to prevent the sun from burning the leaves before flowering.