Thunbergia (Black-Eyed Susan Vine) Flower Seeds for Planting – Heirloom, Non-GMO, Easy to Grow, Climbing Annual

Thunbergia, also known as Black-Eyed Susan Vine, is a reliable climbing annual valued for its uniform growth and consistent garden performance. These Heirloom, Non-GMO seeds are suitable for home gardens, balcony planters, patio trellises, and vertical growing spaces. The plant develops steady blooms during the warm season and adapts well to various garden layouts.

• Heirloom, Non-GMO Seeds
  Supports natural, traditional plant growth without hybrid alterations.

• Climbing Growth Habit
  Ideal for trellises, fences, arches, containers, and vertical garden structures.

• Easy to Grow
  Suitable for beginners and experienced gardeners. Performs well in warm climates with regular sunlight.

• Seasonal Blooms
  Produces consistent floral displays throughout the growing season in the right conditions.

• Container and Outdoor Friendly
  Works well in pots, railing planters, backyard gardens, and open beds.

• Plant Type: Annual climbing vine

• Botanical Name: Thunbergia alata

• Light Requirement: Full sun to partial shade

• Soil Type: Well-drained, moderately fertile soil

• Water Requirement: Moderate, avoid waterlogging

• Growth Height: Approx. 5–8 ft when supported

• Bloom Season: Warm months / summer flowering

• Garden Use: Vertical gardening, trellises, fences, balcony walls

• Sowing Method: Direct sow outdoors or start indoors 4–6 weeks before the warm season.

• Seed Depth: 0.5 cm (¼ inch)

• Germination Time: 10–20 days under warm conditions

• Spacing: 20–30 cm (8–12 inches)

• Support Needed: Provide trellis or vertical support for proper climbing.

• Temperature: Prefers warm weather for rapid growth.

Thunbergia offers consistent adaptive growth for gardeners looking to add vertical greenery. Its dependable climbing habit and seasonal blooms make it suitable for a wide range of garden settings, from compact balcony gardens to larger outdoor landscapes.