Black-eyed Susan Vine (Thunbergia alata)

Black-eyed Susan Vine

Thunbergia alata

Cheerful golden blooms trail like sunlit ribbons. Fast-growing twining vine; common name: Black-eyed Susan vine.

Full sun
2/week
Beginner
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Plant Needs

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Sunlight Full to partial sun; tolerates light shade but blooms best in bright sunlight
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Watering Keep soil evenly moist; avoid waterlogging, allow top 2cm to dry between waterings
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Temperature Thrives in warm temperatures; protect from frost below 10°C
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Characteristics

  • Leaf: Heart-shaped, serrated margins, bright green foliage
  • Flower: Trumpet-shaped blooms with dark purple/black central eye, golden-yellow petals
  • Stem: Slender, twining stems for climbing support
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Care Guide

Watering

Maintain consistent moisture to support blooming

Fertilization

Diluted balanced feed every 2 weeks. Avoid over-fertilizing to prevent leggy growth

Banana peel tea:Soak chopped banana peels in water for 3 days; dilute 1:10 for root drench to promote flower production
Pruning
  • Pinch back growing tips to encourage bushier growth
  • Remove spent blooms to prolong flowering period
  • Trim overgrown stems in early spring to maintain desired shape
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats

Humans: No known toxic effects on humans

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental trailing vine for hanging baskets, trellises, or garden borders