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Product Description
Bring vibrant, trailing blooms to your garden with Thunbergia Alata flower seeds. Also known as Black-eyed Susan vine, this fast-growing plant is perfect for trellises, fences, containers, and hanging baskets, adding a cheerful splash of color to any space.
Features:
Variety: Thunbergia Alata (Black-eyed Susan vine)
Seed Type: Heirloom, GMO-free
Growth Habit: Vigorous, climbing, and trailing
Bloom Season: Summer to early autumn
Sun Requirements: Full sun to partial shade
Maintenance: Low-maintenance, easy to grow
Specifications:
Seed Packet Quantity: Approx. 20–30 seeds per packet
Germination Time: 7–14 days
Growing Zones: USDA zones 9–11 (indoor sowing recommended in cooler climates)
Plant Height/Spread: Can climb 2–3 meters with support
Flower Colors: Bright orange, yellow, and sometimes cream with a dark center
Planting & Sowing Instructions:
Sowing Time: Sow indoors 6–8 weeks before the last frost or direct sow outdoors after frost.
Soil: Well-draining, fertile soil enriched with compost.
Planting Depth: Sow seeds 0.5–1 cm deep.
Watering: Keep soil consistently moist during germination; moderate watering once seedlings are established.
Temperature: Maintain 20–25°C (68–77°F) for optimal germination indoors.
Support: Provide trellis, fence, or hanging basket for climbing and trailing growth.
Care: Prune as needed to encourage bushier growth and continuous flowering.

Life Cycle
Annual vine (perennial in warm climates)
Planting Season
Warm season
Growth Habit
Climbing or trailing vine
Flavor Profile
Bright orange, yellow, or cream blooms with dark central eye
Plant Characteristics
Heart-shaped green leaves with fast-growing tendrils
Use
Trellises, fences, hanging baskets, cottage gardens
Growing Conditions
Fertile, well-drained soil in sunny to lightly shaded areas
Harvest Advantages
Long blooming season with vibrant ornamental appeal
Plant Resistance
Heat tolerant and adaptable once established
Scientific Name: Thunbergia alata
Seed Names
Thunbergia Alata Seeds, Black-Eyed Susan Vine Seeds
Seed Type
Heirloom, Open-Pollinated, GMO-Free
Thunbergia Alata, commonly known as Black-Eyed Susan Vine, is a fast-growing ornamental climber admired for its bright blooms and dark contrasting centers. A premium garden choice for trellises and vertical spaces, it delivers vibrant seasonal color with easy care.
Light Requirement
Full sun to partial shade
Planting Depth
1–1.5 cm deep
Sowing Method
USDA Zones 9–11 (grown as annual in cooler climates)
Plant Spacing
8–12 inches apart
Days to Maturity
60–75 days
Soil Preparation
Soak seeds in warm water for 12–24 hours before sowing
Hardiness Zones
USDA Zones 9–11 (grown as annual in cooler climates)
Water Needs
Moderate; prefers evenly moist, well-drained soil
Planting Season
Spring to early summer
Seed Count
Recommended Coverage
100
up to 90 sq ft
500
up to 450 sq ft
1000
up to 900 sq ft