Black Eyed Susan Vine (Thunbergia alata)

Generated by Gemini AI for Thunbergia alata

Black Eyed Susan Vine Plant Care

Thunbergia alata Bojer ex Sims

This plant is easily identified by its unique trumpet-shaped, bright orange flowers with a black center. Originating from tropical regions of Africa, Thunbergia alata is highly sought after by plant collectors for its striking blooms that attract butterflies and hummingbirds to the garden.

ðŸŒŋShrubsðŸŠīHouseplants
Water

Every 7–10 days

Light

Bright indirect light

Temp

60–80°F

Humidity

50–70%

What Is the Black Eyed Susan Vine?

Black Eyed Susan Vine (Thunbergia alata) belongs to the Acanthaceae family within the Thunbergia genus. Black Eyed Susan Vine is native to Eastern Africa, and has been naturalized in other parts of the world. Black Eyed Susan Vine is also known as Black-Eyed Susan Vine, Clock Vine, Orange Clock Vine.

Black Eyed Susan Vine displays a vining, trailing growth habit, reaching up to 8 inches tall with a spread of approximately 3 inches. Black Eyed Susan Vine produces tubular flowers in various colors like yellow, orange, or white.

Leaf size: approximately 0 inches.

How Often Should You Water a Black Eyed Susan Vine?

Thunbergia alata requires watering every 7–10 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.

Watering Frequency

Every 7–10 days

Let soil partially dry between waterings

What Light Does the Black Eyed Susan Vine Need?

Black Eyed Susan Vine thrives in bright indirect light light conditions. The optimal light range is 0–0 lux. Avoid placing Black Eyed Susan Vine in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Light Requirement

Bright indirect light

0–0 lux

What Temperature and Humidity Does the Black Eyed Susan Vine Prefer?

Thunbergia alata grows best at temperatures between 60°F and 80°F. Black Eyed Susan Vine prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Temperature

60–80°F

Humidity

50–70%

What Soil Mix Works Best for a Black Eyed Susan Vine?

Well-draining, fertile soil with added compost for nutrients. Good drainage is essential for Black Eyed Susan Vine to prevent waterlogging, which leads to root rot and fungal issues.

How Do You Repot a Black Eyed Susan Vine?

Repot annually in spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.

How Do You Propagate a Black Eyed Susan Vine?

Black Eyed Susan Vine can be propagated through seeds, stem cuttings.

Fertilizing

Every 2 months

During the growing season

Is the Black Eyed Susan Vine Toxic to Pets and Children?

Non-Toxic

Non-toxic to humans and pets

What Pests and Diseases Affect the Black Eyed Susan Vine?

Black Eyed Susan Vine is susceptible to aphids, spider mites, whiteflies. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

What USDA Hardiness Zone Does the Black Eyed Susan Vine Need?

Black Eyed Susan Vine grows outdoors in USDA Zone 9b – 12b. Native to Eastern Africa, and has been naturalized in other parts of the world, Black Eyed Susan Vine is adapted to warm climates. In cooler regions, grow Black Eyed Susan Vine as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 9b – 12b

Keep exploring plants

Black Eyed Susan Vine is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.

It belongs to the Thunbergia genus — compare its care with other Thunbergia species on PlantoScan.

Black Eyed Susan Vine thrives in bright light and direct sun — see other bright-light plants.

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