Tithonia diversifolia

[5] Tithonia diversifolia is 2–3 m (6.6–9.8 ft) in height with upright and sometimes ligneous stalks in the form of woody shrubs.

Leaves are sub-ovate, serrate, acute, 10 to 40 cm long, simply or mostly 3-7 lobed, somewhat glandular, and slightly grayish beneath.

[10] This plant was originally domesticated in Mexico and spread to other parts of Central and South America and north into the United States.

[14] In Asia and Latin America this plant is also referred to as kembang bulan (Indonesian and Javanese), jalacate (Spanish), buatong (Thai) and dã quỳ (Vietnamese).

[15] While T. diversifolia has moderate drought tolerance, the amount of rainfall that the African subtropics receives may not be enough to support the growing of this biomass.

[13] It is ideally grown in areas with an annual rainfall ranging from 1000–2000 mm and a temperature of 15-31 degrees Celsius.

[19] A study on the use of this green fertilizer on tomato plants shows that this is a useful method to increase crop yields in order to benefit the farmer’s wealth.

A different study found that, with maize, the overall labour demand versus the financial prospects is not worthwhile, especially in areas of unpredictable rainfalls.

[32] The downside here is that a lot of foliage is needed to cover a small area of land because it has a high water content.

A study found that when applying tithonia with triple superphosphate (TSP) that the yields increased by 220% compared to a control test containing only an inorganic nitrogen fertilizer (Urea).

Flower detail
A shrub
A girl with tree marigold flowers ( Lâm Đồng , Việt Nam ).