- Category
- Forb / Wildflower
- Sun
- Full to Partial
- Soil moisture
- Medium-Dry to Dry
- Bloom time
- Jul–Sep
- Bloom color
- Yellow
- Notes
- Aggressive, Rhizomatous
About Showy Sunflower
Showy Sunflower, also known as Stiff Sunflower, is a rugged perennial that delivers a bold splash of color to the late-summer prairie. Growing 2 to 6 feet tall, this plant features exceptionally stiff, rough-textured stems and leathery leaves that stand up well to the elements. Its flowers are striking, featuring bright yellow rays surrounding a dark central disk, blooming from July through September. Native across much of the U.S. (excluding the deep South and Northwest), it is perfectly adapted to medium-dry to dry soils and full sun. It is a vital ecological contributor, supporting native bees and providing a rich seed source for songbirds. Because it is strongly rhizomatous and forms dense colonies, it is ideal for large-scale restorations or sturdy groundcover. For optimal germination, seeds require a 30-day cold-moist stratification (C30).
Native range
Native to 33 states:
County range map

Range map courtesy of BONAP (Biota of North America Program).
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