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Giant Sunflower
Helianthus giganteus
A truly epic plant, Giant Sunflower is an impressive perennial that can reach heights of up to 12 feet(!), making it a showstopping backdrop for any garden setting. From late summer to early fall it produces vibrant yellow flowers with dark brown centers, attracting an array of pollinators, including bees and butterflies. The seeds of giant sunflower are particularly appealing to a variety of birds, such as finches and chickadees, who feast on them in the autumn months. This plant is ideal for naturalistic plantings and meadow gardens where its height and floral display can be fully appreciated.
Details
Height60” - 84”
Spread36"
Bloom SeasonJuly – September
Soil Types
Clay
Loam
Sand
Soil Moisture
Medium
Moist
Sun Exposure
Part Sun
Full Sun
Range Map
Available
Not available
Ecological Benefits
Maintenance Tips
- Deadheading spent flowers can encourage more blooms and prevent too much self-seeding.
- Be advised, this may not be a good selection for smaller yards!
- Support may be needed for especially tall stalks in exposed or windy areas to prevent them from falling over.



