Cacti & succulents come from various regions of the world. Both encompass many different varieties of plants. Therefore, most of the time, they aren’t sorted or named when you see them in store. Fortunately, though, the care for these cacti and succulents are similar. Light Many cacti & succulents can sustain and grow with at least medium light. South facing windows work best in Oklahoma. Depending on the plant variety, intensity of the sun or time of year, west facing window