Thunbergia (Black-Eyed Susan Vine) Seeds

The vining habit of Thunbergia (or Black-Eyed Susan Vine) makes it ideal for hanging baskets and works well with other trailing annuals that will co-mingle with the plant. Grow Thunbergia from seed in large containers and let it trellis to provide an accent to other compact annuals that will fill out the planter.

Thunbergia (Black-Eyed Susan Vine) Seeds

Planning for Thunbergia Success

Plan your Thunbergia growing success by evaluating these key factors:

  • Growing conditions: Look for space with full sun to light shade, as these vines thrive in bright conditions.
  • Planting method: Start Thunbergia from seed indoors six to eight weeks before your last frost or sow directly outdoors once the soil warms.
  • Support structures: Account for trellis netting or arbors to guide vertical growth.
  • Container requirements: Evaluate pot size when growing in containers and ensure adequate drainage for healthy roots.

Why Trust Harris Seeds for Your Flower Seed Needs?

Harris Seeds has supported growers of all sizes for 145+ years with:

  • Superior germination rates: Benefit from industry-leading germination backed by rigorous quality testing.
  • Fast order turnaround: Receive seeds quickly, with fast shipping.
  • Flexible payment options: Access volume discounts and credit terms for professional growers.

Contact us with questions about Thunbergia seed or any of our products. Explore our collection and place your order online!