Perennial: Tolerates deer, heat and drought. Native to China, Vietnam, Korea & Japan. Has tubular 2-lipped flowers that form in whorls on dense flower spikes. Good for borders, cottage gardens and containers. Does well in hot areas. Fragrant foliage. Attracts butterflies, hummingbirds and pollinators. Bloom time: summer-fall. Bloom color: yellow. Height: 12-18 inches. Width: 20 inches. Exposure: sun. Water: moderate/dry. USDA Z6.