Vinca major is an exceptionally tough variety that will flourish in almost any position in the garden from full sun to difficult shady corners periwinkle is a robust low growing shrub that produces inky blue flowers from april right through until september vinca bears dark green evergreen foliage on ground45covering stems that can help to beat weeds making it a beneficial addition to any garden this plant is brilliant for filling difficult gaps in the garden where few other species wil