Vinca Major is also called Big Leaf Periwinkle and displays beautiful color to all gardens. It grows to be around ten inches tall and also trails along the ground to cover a wide area. These plants are fantastic when used as ground covers and grow to become thick and display beautiful green leaves and also bright blooms of lavender and can also appear in other colors. These plants bloom in the spring and on into the autumn months. The leaves will have a leathery feel to them.