These thymes have an upright, bushy habit, and usually grow to between 12 and 24 inches tall and wide. They're too tall to place between paving stones, but can be used next to paths or in beds.
Traditionally used for production of thymol (oil of thyme). Strongly scented, sprawling plant with white flowers and light-colored bracts. Almost always in bloom. Images: whole plant, scanned plant, and closeup.