Black-Eyed Susan Vine Seeds produce a fast-growing tropical vine known for its trailing or climbing habit and vibrant, trumpet-shaped yellow or orange flowers with dark centers. This perennial vine thrives in full sun to partial shade with well-drained soil and is suitable for trellises, fences, arbors, and container growing. Black-Eyed Susan Vine attracts pollinators and adds ornamental color and texture to garden landscapes throughout the warm season.
Features
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Vigorous tropical climbing or trailing perennial vine
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Produces trumpet-shaped yellow or orange flowers with dark centers
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Suitable for trellises, fences, arbors, and containers
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Thrives in full sun to partial shade with well-drained soil
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Attracts pollinators such as bees and butterflies
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Adds vibrant color and ornamental interest
Specifications
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Scientific name: Thunbergia alata
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Common name (US): Black-Eyed Susan Vine
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Seed type / variety: Tropical climbing vine variety
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Growth habit: Twining perennial vine
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USDA zones: 9 to 11 (grown as annual in cooler zones)
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Planting season: Spring
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Growing season: Late spring through fall
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Sowing Season: Spring
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Sowing season months: March to May
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Germination time and conditions: 7 to 14 days at 70 to 85 F in warm, moist soil
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Sunlight requirements: Full sun to partial shade
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Soil requirements: Well-drained, fertile soil
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Watering needs: Moderate; keep soil evenly moist during establishment
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Mature plant size: 6 to 10 feet long
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Plant spacing: 12 to 18 inches apart