Thunbergia alata
The Blackeyed Susan Vine (Thunbergia alata) is an annual vine that boasts stunning yellow and orange flowers decorated with black eyes. They provide lots of colour and are a perfect way to bring a bit of the outdoors to a window box or trellis. The plants are easy to care for and grow quickly if planted in a sunny spot with regular watering. The blooms last from early summer into autumn, offering a great burst of colour during the earlier months of summer. It's an invasive species, so think carefully before introducing it to your garden!
Sunlight
Partial Shade
Water Needs
medium
Green areas show climates worldwide where this plant can grow.
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Water Every
"3-4" days
Sun Needs
partial-shade
Growth
High
Care Level
Moderate
💧 Water every "3-4" days
Seasonal Adjustments
Adjust watering frequency based on temperature, humidity, and season. Water more frequently in summer and less in winter.
Pro Tip: Check soil moisture before watering. Stick your finger 1-2 inches into the soil—if it's dry, it's time to water!
Start seeds indoors 6-8 weeks before last frost date
Take 4-6" cuttings in spring, root in water or moist soil
Take 4-6" cuttings in spring, root in water or moist soil
Good For:
Consider Carefully:
Enjoys dappled or limited direct sun—about 2–4 hours of morning or late afternoon light and protection during peak midday sun.
Keep soil consistently moist but not waterlogged. Water when top inch of soil is dry.
Plant in early spring or fall for best results. Blooms in summer.