Garden Seeds
Black-eyed Susan Vine Thungbergia Flower Seeds
Sold by Annie’s Annuals & Perennials · United States
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Black-eyed Susan vine peeks through summer with bright orange and yellow faces, each centered by a deep, dramatic eye. Heart-shaped leaves clothe the graceful twining stems, giving a trellis, small arbor, or hanging basket a quick old-fashioned flourish. The
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4–5-foot vine starts deliberately, then gathers speed as warm weather settles in. Its cheerful 1½-inch flowers arrive in profusion at midsummer, bringing color to vertical spaces without the weight of a woody climber. Botanical name: Thunbergia alata Life cycle: Tender annual vine Colors: Orange and yellow with dark centers Exposure: Full sun Sowing: Direct sow in warm soil or start indoors 5–6 weeks early Planting depth: 1/2 in. Germination: 14–21 days Mature height: 4–5 ft. Final spacing: 6 in. Approximate seed count: 25–30 Seed-starting help: Tiny seeds, large opinions. This variety can begin indoors or outside. Compare direct sowing with indoor seed starting , then check when to begin in your climate . Provide a support at planting time, or let the stems spill from a basket for a pyramid of bloom. Discover more distinctive vines in our flower seed packets .