Pennyroyal (Piloblephis rigida) is an evergreen low-growing plant noted for its strong minty aroma/fragrance. It can grow to up to 2 feet tall and requires full sun with lightly moist to dry sandy soil. Lilac/lavender flowers will bloom from late fall to mid-spring (November to April). This is an attractive plant for a container, even when the flowers are not in bloom. When planting, space it 12-24 inches apart. It's a great drought tolerant, groundcover that attracts butterflies.