Heliopsis helianthoides

False Sunflower, also called oxeye, has 2 to 3 inch golden yellow flowers that are beautiful when used in floral arrangements. The plant grows 2 to 6 feet tall in light shade to full sun. It grows best in average, well-drained, moist garden soil. This hardy perennial tolerates drought but increases more rapidly in fertile soil. Flowers attract nectar seeking butterflies and birds enjoy the ripe seeds. This is an exceptionally long-blooming flower for the cutting garden. ...