Starry flowers, glossy leaves, and persistent fruits characterize the rosy periwinkle plant. It is a perennial in its native region of Madagascar and in tropical to semi-tropical regions. The flowers may be found in white, pink and rosy-purple. It is easy to care for plant that may grow as a perennial or an annual in cooler zones.
Due to the plant’s adaptive nature, growing Madagascar rosy periwinkle in wetter, temperate zones is possible. It will succumb when freezing temperatures arrive but generally blooms prolifically until that time.
The biggest issue with Madagascar periwinkle care is overwatering. Apply infrequent supplemental water in only the hottest and driest periods. In temperate zones, water the plants only until established and then rarely.