This is Rosa rugosa Alba, also known as Japanese rose, and White Rose. Considered an edible ornamental this shrub is used as a windbreak or hedge, and it also provides edible fruit, seeds, and flowers. This fragrant flower likes to live in full sun to partial shade. This shrub can grow to about 6 feet tall and blooms repeatedly from late Spring until early Fall. This is a larval host plant for the Columbia silkmoth. USDA Hardiness Zones 2 to 9.