Vinca (Catharanthus roseus) is an annual bedding plant which originated from Madagascar. It is a tough plant to grow because it requires higher air (up to 85˚F) and substrate (not less than 70˚F) temperatures than other plants, a low fertility, high porosity substrate, high relative humidity and high light. Gardeners choose Vinca because it is relatively drought-tolerant and performs well in dry and hot locations exposed to full sun. Another important benefit of this plant is that it flowers during the entire summer. Vinca flowers come in a wide variety of colors such as red, dark red, white, pink, light pink, and purple.
In general, there are three types of Vincas: creeping (spreads 8-10 inches), dwarf (10-14 inches tall) and a border type (bigger flowers and 14-20 inches tall). In this article, the focus will be on the latter two types in which there are several series, which include: Jams N’ Jellies, Titan, Pacifica XP, Mediterranean, Cooler, Heat Wave, Blue Pearl, Tropicana, Passion, Cora, and others.
https://www.pthorticulture.com/en/training-center/growing-tough-crops-vinca-catharanthus-roseus/