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Helianthus grosseserratus
Also called Thick Tooth Sunflower, Thick Toothed Sunflower, Sawtoothed Sunflower
Sawtooth sunflower is a tall native perennial sunflower from eastern and central North America that grows along streams and damp prairies. It does best in full sun and moist, fertile, organic-rich soil.
Helianthus grosseserratus, commonly known as sawtooth sunflower or thick-tooth sunflower, is a perennial sunflower in the family Asteraceae, with a large flowering head (inflorescence).
The plant may reach 3–7 feet (91–366 cm) in height with instances to 12 and is found along streams, damp prairies and roadsides in the eastern and central parts of Canada and the United States, primarily in the northern Great Plains and Great Lakes Region, with additional populations as far as Maine, Georgia, and Texas. It prefers full sun and moist, fertile loamy soil with high organic content.
Common sunflower · Texas blueweed · Maximilian sunflower · Paradox sunflower · Jerusalem artichoke · Sunflower
Text excerpted from the Wikipedia article Helianthus grosseserratus by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
