Thinleaf Sunflower Picture

Thinleaf Sunflower
Helianthus decapetalus
Asteraceae

Yellow Swish

Large (2-3.5") yellow sunflowers from July through September, long serrate leaves up to 7" long & 3" wide with slender points, forms colonies by rhizomes, easy to grow, attracts butterflies & bees, Goldfinches & other birds love the seeds, food plant for lots of interesting insects including the Silvery Checkerspot & Gorgone Checkerspot Butterfly (Chlosyne nycteis & C. gorgone) & Painted Lady (Vanessa cardui) caterpillars.

Dry To Moist
Sun To Part Shade
3-5' Tall
Plant Hardiness Zones: 4a-9b
Perennial

Other names: Ten-Petal Sunflower

Native Range: NB to s. ON & WI, south to OK, LA & the mountains of GA

Germination - Easy: Cold stratify 6 weeks

Thinleaf Sunflower 3.5 inch pot $9.25
Thinleaf Sunflower Seed Packet $4.00
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Thinleaf Sunflower Drawing