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False Sunflower

Heliopsis helianthoides 'Summer Sun'

Clump forming, dark green foliage with sunny semi-double blooms around golden orange cones.

False Sunflowers are native from Ontario to Florida and the Mississippi. They are care-free and reliable for their very long season of bloom. Plants form a tall, bushy clump of dark green leaves, bearing branching heads of large, semi-double, golden-yellow daisy flowers with a brown centre, from early summer to early fall. Outstanding cut flower. Removing faded flowers regularly will greatly extend the blooming season. May require staking, particularly when grown in very rich garden soil or too much shade. Easily divided in early spring. Easy and always rewarding. Don't allow to dry out. Attractive to butterflies.


Bloom Time:

Blooms summer to fall

Mature Height:

36-48 In

Hardiness Zone:

2-9 Find your zone


Full Sun,Partial Shade

Features and Usage:

Greenhouse Growing Instructions:

Grow on at 70-75° F under long days with high light conditions. Water moderately, and allow to dry some between watering. Once actively growing, fertilize with 100-150 ppm N at each watering. Pinch to increase branching. Plants generally finish in 8-10 weeks based on growing conditions.
Plants Per Gallon: 1
Storage Temperature Prior to Planting: 38
Cooler Humidity Prior to Planting: Low

Transplanting Instructions:

Plant in well draining professional potting soil keeping crown just at the soil surface with roots spread downward in the pot. Once planted, water immediately and apply a broad spectrum fungicide according to directions to avoid crown and root rot.

Homeowner Planting and Maintenance Tips:

Plant in well-drained soil in full sun to partial shade.

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We have done our best to describe this plant as accurately as possible, however, different climates
and growing conditions in different parts of the country will affect height, bloom time, and color.