Horse Balm  occurs in rich woodlands, ravines and wooded slopes, often in limestone soils, and typically grows 2-3' (less frequently to 4') tall. Features elongated, branching, loose, pyramidal, terminal clusters of tiny, yellow flowers in mid to late summer and large, sharply toothed, ovate, green leaves (4-8") on square stems. Foliage (when crushed) and flowers of this mint family member have a citronella-like fragrance. Best grown in woodland, native plant or wildflower gardens.