Perennial: Upright, clumping woodland mint native to western Europe. Small orchid-like white flowers w/ a dark purple lip. The honey-scented foliage can be dried and added to potpourri. Attracts butterflies. Good woodland, border or container plant. Bloom time: spring-summer. Height: 12-18". Width: 18-24". Exposure: sun/part shade (happiest in part shade). Water: moderate. Prefers moist, well-draining soil. USDA Z5-9. PP13233