Wild sunflowers across the Kansas prairie
Helianthus annuus
Wild sunflowers usually bloom from late July to mid-September across the Kansas prairie, with the best color from late August into mid-September.
late July – mid-September Best: late August into mid-September Out of season
The show usually starts around late July. Check back closer to the season.
Not every season keeps to that rhythm. In 2 of the 9 seasons on record (2020 and 2026) the first flowers opened around early June.
Where to see them
The Sunflower State earns the plate in late August, when the wild annuals crowd every fencerow and section road. This is the one great bloom that peaks when everything else is done.
- Flint Hills National Scenic Byway (K-177)
- Konza Prairie Biological Station
We name public reserves, parks, and roads only — never exact pins, never private land.
Updated September 29, 2026. Bloom timing varies with the year's weather — the curve shows the usual rhythm, and in-season updates sharpen it.