Pansies are being replaced by periwinkles, or are they vinca vines? I believe the variety pictured here is a Madagascar periwinkle, known in the Caribbean for its medicinal properties. In Jamaica, a tea is made from the plant and recent scientific studies have found that it does indeed have important effective medicinal qualities. It is a classy ground cover and is often overlooked because of it's widespread usage and ease of growing in gardens. Take another look at this very pretty herb.