Grow Thunbergia from heirloom non-GMO seeds for vibrant flowers and attractive climbing foliage. Ideal for trellises, fences, containers, hanging baskets, patios, balconies, and sunny ornamental garden displays.
Key Features
- Produces colorful, eye-catching flowers on vigorous vines.
- Heirloom, non-GMO flower seeds for home gardeners.
- Climbing growth is ideal for trellises, fences, and garden supports.
- Suitable for containers, hanging baskets, patios, and balconies.
- Performs best in warm conditions with full sun to partial shade.
- Easy to train vertically for attractive garden displays.
Growing Benefits
- Adds height and color to garden landscapes.
- Makes excellent use of vertical gardening space.
- Creates attractive coverage for trellises, fences, and supports.
- Suitable for containers and small outdoor spaces.
- Provides seasonal flowers for ornamental and pollinator-friendly gardens.
Seed Specifications
- Common Name: Thunbergia, Black-Eyed Susan Vine
- Botanical Name: Thunbergia alata
- Plant Type: Tender perennial vine, commonly grown as an annual in cooler climates
- Flower Colors: Typically yellow, orange, or cream with dark centers, depending on variety
- Foliage: Green, heart-shaped to ovate leaves
- Growth Habit: Climbing and twining vine
- Sunlight: Full sun to partial shade
- Soil: Fertile, loose, well-drained soil
- Water: Moderate; maintain consistent moisture during active growth
- Germination Time: Approximately 7–21 days under favorable conditions
- Sowing Depth: Approximately ¼ inch
- Spacing: Approximately 12–18 inches
- Growing Zones: Generally perennial in USDA Zones 10–11; grown as an annual in cooler regions
- Flowering: Summer through fall under favorable conditions
- Uses: Trellises, fences, containers, hanging baskets, patios, balconies, borders, and ornamental landscapes
Growing Tips
- Start seeds indoors several weeks before the last frost in cooler climates.
- Provide a trellis, fence, or other support as vines develop.
- Choose a sunny location with well-drained soil.
- Keep soil evenly moist during germination and early growth.
- Pinch growing tips when needed to encourage fuller branching.
- Protect plants from frost and freezing temperatures.
Seed Storage
Store unused seeds in a cool, dry, dark location. Keep them sealed in their original packet or an airtight container away from moisture, heat, and direct sunlight.
Unique Facts
- Thunbergia alata is commonly known as Black-Eyed Susan Vine because of the dark center found on many flowers.
- It is a vigorous twining vine that can quickly cover suitable supports during warm weather.
- Thunbergia is native to parts of eastern Africa.
- The flowers can attract bees, butterflies, and other garden visitors.