Subshrub: Evergreen. Heat & drought tolerant. Grow as an annual in harsh climates. Add a pop of continuous sunshine to your summertime beds & borders. Also excellent in pots & hanging baskets. Attracts butterflies & hummingbirds. Blooms: spring-fall. Bloom color: bright yellow. Height: 12-24". Spread: 12-24". Exposure: sun/part shade. Water: moderate. USDA 9.