Black-eyed Susan is a Missouri native wildflower that transforms any garden into a cheerful, carefree landscape from summer straight through to frost. This coarse, hairy plant produces daisy-like flowers up to 3 inches across, with bright yellow to orange-yellow petals radiating around a distinctive domed, dark chocolate-brown center disk. Growing 24-36 inches tall and spreading 12-24 inches wide, it blooms prolifically from June through November, reaching full flower production in 84-112 days from seed. Hardy in zones 3-9, it thrives in full sun with moderate water and minimal maintenance, making it a genuine set-it-and-forget-it choice for gardeners seeking authentic, low-fuss color.
1
Full Sun
Moderate
3-9
36in H x 24in W
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Moderate
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These wildflowers earn their reputation through sheer reliability and long-season performance. The flowers dry beautifully and cut well, so you get months of color in the garden and arrangements both. It tolerates drought, clay soil, shallow rocky soil, and even urban conditions with equal grace, while deer pass by untouched. Butterflies and birds arrive in waves to visit the blooms, turning your garden into a working ecosystem without requiring anything beyond basic sunlight and occasional water.
Black-eyed Susan fills multiple garden roles with ease. Use it to line the back of borders where its 2-3 foot height creates a golden backdrop, or showcase specimens on patios in containers. The flowers excel as fresh and dried cut arrangements, holding their form and color for weeks in water or when dried. Naturalize it in rain gardens, meadows, and landscape restoration projects where its native credentials and drought tolerance shine. Many gardeners deadhead spent flowers throughout the season to encourage continuous bloom, or let some flowers go to seed for volunteer plants the following year.
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Start seed indoors 8-10 weeks before your average last frost date. Sow seed on the surface or cover lightly with soil; a stratification period (chilling at 35-40°F for 30 days) is beneficial but not required. Sow in a seed starting container, cover with a plastic bag, and refrigerate for 30 days, or mix seed with damp clean sand or vermiculite, bag, and refrigerate. After the chill period, bring seeds into warmth at 65-75°F. Seeds should sprout in 7-14 days. If started early enough, seedlings may bloom the first year. Transplant outdoors once nights stay consistently above 50°F.
Transplant seedlings 8-10 weeks before your average last frost date, or after your average last frost date when nighttime temperatures consistently stay above 50°F. Harden off seedlings gradually over a week to acclimate them to outdoor conditions. Space transplants 1 foot apart in full sun in well-drained soil. Handle carefully to avoid disturbing roots.
Direct sow outdoors 2-4 weeks before your average last frost date in spring, or as late as 2 months before your average first fall frost date. Press seed lightly into the soil surface or cover with a thin layer of clean sand. Thin seedlings to 1 every 12-24 inches when plants are 1-2 inches tall. You may also winter sow by placing seed in pots in the shade, covering with a thin layer of clean sand and a wire screen, then bringing them into warmth in early spring.
Deadhead spent flowers throughout the growing season to encourage continuous bloom and extend flowering through fall frost. You can also allow some flowers to mature and drop seed if you want volunteer plants the next year and don't mind the plant's self-seeding tendency.
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“Black-eyed Susan is a common wildflower native to Missouri and throughout the eastern United States, where it naturally occurs in open woods, prairies, fields, roadsides, and waste areas. The plant's journey from wild meadow to cultivated garden reflects the American tradition of honoring native species. Its scientific name honors Olof Rudbeck (1630-1702), a Swedish botanist and founder of the Uppsala Botanic Garden in Sweden, where Carl Linnaeus later served as professor of botany. Seed companies like True Leaf Market and Botanical Interests have maintained and distributed these seeds to gardeners for generations, preserving the wildflower's accessibility while plant breeders have developed compact and specially colored cultivars that extend its appeal.”