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Black-Eyed Susan Vine 'Spanish Eyes'

Thunbergia alata

Family: Acanthaceae (ah-kanth-AY-see-ee) (Info)
Genus: Thunbergia (thun-BER-jee-uh) (Info)
Species: alata (a-LAY-tuh) (Info)
Cultivar: Spanish Eyes


Vines and Climbers

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

This plant is suitable for growing indoors


6-8 ft. (1.8-2.4 m)


24-36 in. (60-90 cm)


USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:

Sun to Partial Shade



Bloom Color:


Scarlet (Dark Red)




White/Near White


Bloom Time:

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall



Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:


Propagation Methods:

From herbaceous stem cuttings

From seed; sow indoors before last frost

From seed; direct sow after last frost

Seed Collecting:

Allow seedheads to dry on plants; remove and collect seeds


This plant has been said to grow in the following regions:

Mobile, Alabama

Elk Grove, California

Richmond, California (2 reports)

San Francisco, California

San Mateo, California

Palm Harbor, Florida

Guyton, Georgia

Benton, Illinois

Barbourville, Kentucky

Flemingsburg, Kentucky

Stillwater, Minnesota

Monroe, New York

New York City, New York

Warrensville, North Carolina

Radford, Virginia

Richmond, Virginia

show all

Gardeners' Notes:


On Jan 2, 2014, CrankySci from New York City, NY (Zone 6b) wrote:

This plant easily germinated from seed, resulted in rigorous vines that began blooming as soon as they were about 2.5 feet tall. At the time I was living in NJ and grew them in containers.

Beautiful blossoms, no disease or bug problems were observed, and it flourished quickly.

An annual in the Northeast, but I've seen this plant become a bonkers perennial in California.


On May 1, 2011, Olwin from Knoxville, TN (Zone 7a) wrote:

While this plant was easy to propagate from seed indoors, I was underwhelmed with the lack of blooms it produced in hanging baskets. Too much foliage and not enough flowers.


On Feb 3, 2010, jenhillphoto from Danbury, CT (Zone 6a) wrote:

I started mine late outdoors. They took a while to get going and never got to the flowering stage before fall. I will try again in 2010 and start them inside ahead of time as the seed packets says.


On Feb 9, 2008, CurtisJones from Longmont, CO wrote:

A little more information from your friends at Botanical Interests: "Annual. Blooms summer. 5' - 10' trailing vine. Full sun. Vigorous vine with sunset-colored, dark-eyed flowers. Great ground cover, screen, or hanging basket variety! Use in window boxes, as a ground cover, on a trellis, or in hanging baskets. Sow outside after danger of spring frost has passed. "


On Aug 16, 2005, celtic_dolphin from Boone, NC (Zone 4b) wrote:

Wonderful little vine! Was slow to start growing, but once it took off, it is spreading like wildfire! I have them growing on a trellis and also in hanging baskets, they seem to prefer climbing to hanging, but still look good in the baskets. The colors in this mix are wonderful, my cousin had never seen a black-eyed susan vine before, but after seeing the first bloom of this variety she gasped and shouted "that's my new favorite flower!". I think it's my new favorite vine, at the least. Not sure how easy it will be to gather seed, will update once I've reached that point.