Cape primrose (Streptocarpus)

Cape primrose is a common name for Streptocarpus, a diverse genus of flowering plants grown mainly as indoor ornamentals. Species and cultivars vary in leaf shape, size, and flower color, so the profile below describes broad growing preferences rather than a uniform mature form. [Missouri Botanical Garden](https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?isprofile=0&pt=8&taxonid=264611) ## Growth and flowers The genus includes more than 150 species, many native to tropical African mountain regions. Plants generally form rosettes or leafy clumps, with tubular, five-lobed flowers in shades including blue, purple, pink, and white. Some are grown for long-lasting indoor bloom; growth habit, foliage, and mature size vary widely among species and cultivars. ## Light and watering Grow in bright filtered or indirect light, away from hot direct sun and cold drafts. Use a loose, fertile, humus-rich potting mix with good drainage. Water thoroughly, then allow the surface to dry before watering again; do not leave the pot standing in water. Higher humidity is helpful, but keep leaves and crowns from staying wet. ## Seasonal care Many types flower from spring into autumn, though timing varies. Remove faded flowers and stalks, and trim spent foliage to keep the plant tidy. Some species slow down or become dormant in winter; reduce watering as growth declines. [NC State Extension](https://plants.ces.ncsu.edu/plants/streptocarpus/common-name/cape-primrose/) also notes that the genus contains many species with differing sizes and habits. ## Maintenance Remove spent flower stalks and old leaves as they fade. Keep the crown above the potting mix and maintain free drainage. In winter, keep plants in a bright position and water only when the mix begins to dry; resume more regular watering when active growth returns.