Periwinkle Plant. When installing periwinkles it is best to plant in an area that gets full to partial sunlight. Apocynaceae (periwinkle) where is it originally from?
This is the hardier and smaller plant of the two main species—minor in latin simply means smaller. Despite being called periwinkle, this is a different plant with different needs and habits. Shear periwinkle plants back hard in the spring to promote fresh, new growth and to control spread.