False sunflower

Heliopsis helianthoides

Heliopsis helianthoides var. scabra 'Asahi'
Photo/Illustration: 
Courtesy of White Flower Farm
Heliopsis helianthoides 'Prairie Sunset'
Photo/Illustration: 
Courtesy of Bailey Nurseries
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False sunflower (Heliopsis helianthoides)
hee-lee-OP-sis hee-lee-an-THOY-deez
Genus:  Heliopsis
This clump-forming perennial bears striking, sunflower-like yellow blooms on long stalks from midsummer to early autumn.
Noteworthy Characteristics:  Long-lasting cut flower. Use in the back of the border or in wildflower or cutting gardens.
Care:  Deadhead to prolong bloom. Site in full sun or part shade and moist, well-drained soil. Can be cut back by half in early June to prevent them from flopping. Divide every 2 to 3 years to maintain vigor.
Propagation:  Start from seed, divide plants in spring or autumn, or root basal cuttings in spring.
Problems:  Prone to powdery mildew and rust.

Overview

Height
3 ft. to 6 ft.
Spread
1 ft. to 3 ft.
Growth Habit
Clumps
Light
Full Sun to Part Shade
Moisture
Medium Moisture
Characteristics
Native,
Self Seeds,
Showy Flowers
Bloom Time
Fall,
Summer
Flower Color
Yellow Flower
Uses
Beds and Borders,
Container,
Cut Flower,
Naturalizing
Style
Cottage Garden
Seasonal Interest
Summer Interest
Type
Perennials

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