| Botanical Name | Thunbergia alata |
| Family | Acanthaceae |
| Genus | Thunbergia |
| Specie | alata |
| Common Name | Black-Eyed Susan Vine |
| Life Cycle | perennial but annual in cold areas |
| Fragrant or Not | No |
| Category(Bush/Vine/Tree) | vine |
| Height | Where grown as an annual, plants can reach 8 feet; when grown as a perennial, 20 feet. |
| Spacing | 24-36 in |
| Flowering Months | spring-fall |
| Flower Color | typically are warm orange with a characteristic dark spot in the centre, although different varieties can be red, orange, red-orange, white, pale yellow, or bright yellow, with or without the characteristic chocolate-purple centre |
| Growing Areas | All Pakistan |
| Frost Tender | yes In cold areas treat it as an annual. |
| Exposure | Sun to Partial Shade |
| Soil pH | tolerant |
| Propagation | from seeds,by stem cutting |
| Uses | ornamental vine |
| Other Details | In much of the warmer world, Thunbergia alata, or black-eyed susan, is well known as a fast-growing, long-flowering, friendly creeper.it is a general favourite as it is not fussy about soil, needs only moderate water, doesn't go rampant, is mostly evergreen and covers ugly places beautifully.Thunbergia alata is a soft, perennial climber about 1-5 x 1 m with many twining stems. The leaves are arrow-shaped, softly hairy and sometimes toothed. Many flowers are borne singly in leaf axils with a small calyx enclosed in 2 large, ridged bracts. The corolla is obliquely trumpet-shaped and is usually bright orange in wild plants. The inside of the tube is a striking dark maroon or purplish black. Nurseries also have variants with white, cream- or peach-coloured, yellow to deep orange or nearly red flowers. The fruit is like a bird's head with a spherical base and a long 'beak'. It needs full sun or light shade. It is half-hardy, needing fairly warm conditions but, with protection, young plants can survive some frost. |
common type.
white without center dark circle.
image courtesy mr Kaleem.