Heliopsis Helianthoides 'Summer Sun'

False Sunflower

Heliopsis helianthoides ‘Summer Sun’ is a vigorous perennial valued for its large, semi-double to double golden-yellow flowers and long bloom period. Deep green leaves form a sturdy clump in spring, followed by abundant, sunflower-like blooms from early summer into fall that provide bright, long-lasting color. Its strong stems and showy flowers make it a standout in sunny borders and cutting gardens.

Type: Perennial

Mature Size:
Width: 2–3 ft
Height: 3–5 ft
(10-year size: forms expanding clumps)

USDA Zones: 3a–9b
Form: Upright, clump-forming
Light: Full sun (best flowering)
Soil: Average, well-drained soils; adaptable
Water: Moderate; tolerates some drought once established

Wildlife: Attracts bees and butterflies; seeds may attract birds


Features & Landscape Uses


Large, double yellow flowers for bold color



Long bloom period from early summer to fall



Strong stems suitable for cut flowers



Ideal for borders, massing, and pollinator gardens




Care
Low-maintenance and easy to grow. Plant in full sun for best performance. Deadhead to prolong flowering, or leave seed heads for wildlife. Cut back in late fall or early spring. Divide every few years to maintain vigor.

Plant type

Perennial

Height

3-5'

Width

2-3'

Hardiness zones

3–9

Sunlight

Full Sun, Partial Shade

Growth rate

Fast

Bloom time

Late Spring

Flower color

Gold, Orange

Leaf color

Green

Fall color

Dark Green

Attracts

Bees, Butterflies

Soil

Average, Clay, Highly Adaptable, Well Drained

Shape

Clump, Upright

Fragrant

Yes

Drought tolerant

Yes