Heliopsis helianthoides 'Summer Sun'
Common Name: Sunflower, Sunflower Heliopsis.
Zones 3 to 9, except for the southeast lowlands;
Full Sun to part shade.
Mature size 36 inch height, spreads 24 to 30 inches;
clump forming with spreading habit.
Semi-double, 2 to 3 inch wide, bright gold flowers bloom all summer long atop strong stems; great cut flowers. 'Summer Sun' is very heat tolerant, and recommended for southern zones.
Missouri Botanical Garden Emeritus Plants of Merit
Heliopsis tolerates a wide range of soils although it grows best in average, dry to medium, well-drained soil in full sun. Drought tough, it prefers regular watering. Light shade is ok, especially in southern zones, but too much shade (or moist, rich soil) may require staking.
A tall, bushy form and glossy, deep green, triangular leaves makes this is an excellent choice for the back of the flower border. Deadhead to extend the blooming season and prevent self-seeding. Plant them in mass to enjoy great fresh cut flowers. Flower nectar attracts butterflies and birds eat the ripen seeds.
Oxeye sunflower or Heliopsis helianthoides is a clump-forming, upright, 3 to 6 foot tall, native perennial found throughout the eastern US and into Canada. Heliopsis is both similar in appearance to and closely related to Helianthus, the true sunflower.
Mature field grown plant shipped bare root.