Rosemary is an attractive evergreen shrub with needle-like leaves and brilliant blue flowers. The flowers of persist through summer, filling the air with a nice piney fragrance. This beautiful herb, mostly used for seasoning dishes, is also commonly used as ornamental plantings in the landscape. Rosemary can commonly reach 3' in height. While rosemary tolerates partial shade, it prefers full sun and light and well-drained soil.