Rosinweed sunflower is a native perennial wildflower that brings the charm of the American South central prairie into any garden. Named for its resemblance to plants in the genus Silphium, this herbaceous perennial produces cheerful 3-inch sunflowers with bright yellow rays and deep reddish-purple center disks from August through October. Growing 3 to 10 feet tall depending on conditions, it thrives in zones 5 through 9 and handles drought and clay soils with remarkable ease, making it an excellent choice for naturalized plantings and pollinator gardens. The plant self-seeds readily and requires minimal maintenance once established.
Full Sun
Moderate
5-9
120in H x 60in W
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Moderate
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Three-inch golden sunflowers with striking dark reddish-purple centers bloom reliably from mid-summer into fall, attracting butterflies and birds to the garden. Native to the south central United States, this perennial adapts to challenging conditions, including drought, dry soil, and heavy clay, that might defeat more fussy plants. The showy blooms work beautifully in cut arrangements, and the plant's low-maintenance nature makes it rewarding for gardeners who want dramatic results without constant fussing.
Rosinweed sunflower excels in naturalized plantings where its tall, open growth and late-season blooms can be left to support wildlife through fall. The showy 3-inch flowers make excellent fresh cut arrangements, particularly valued for their long vase life and striking color contrast. In native plant gardens and pollinator habitats, it serves as a crucial late-season nectar and seed source for butterflies, bees, and migrating birds preparing for winter.
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Easily grown from seed and may self-seed naturally in the garden. Sow seeds where you want plants to grow after the last spring frost.
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“Helianthus silphioides is native to the south central United States, where it naturally occurs across Illinois, Missouri, Kentucky, Oklahoma, Arkansas, Tennessee, Louisiana, Mississippi, and Alabama. Its common names reflect its botanical kinship: rosinweed sunflower and Ozark sunflower both reference its resemblance to the genus Silphium and its regional origins in the Mississippi River valley and Ozark regions. As native plants have gained recognition among gardeners seeking to restore regional ecosystems and support local pollinators, this species has become increasingly valued in cultivation.”