Perennial Shrub: Deciduous. Tolerates clay. Forms a mound of dark green foliage topped w pale /sunshine ylw blooms on upright slender stems. Good container or rock garden plant or for lightly shaded patios & decks. Will tolerate full sun in cooler climates but prefers morning sun only or light shade all day. Attracts butterflies & bees. Bloom time: spring-summer. Height: 1-3 ft. Water: dry. USDA Z2-7