It takes seven to eight years for the khat plant to reach its full height.
Other than access to sun and water, khat requires little maintenance.
There, chewing khat predates the use of coffee and is used in a similar social context.
In Uganda it is grown in Central region, kasenge Nakawuka road,nkugulutale,kisozi, Nsaggu and some parts of Western region of the Country .
A good khat plant can be harvested four times a year, providing a year-long source of income for the farmer.
Addiction experts in psychiatry, chemistry, pharmacology, forensic science, epidemiology, and the police and legal services engaged in delphic analysis regarding 20 popular recreational drugs.
Individuals become very talkative under the influence of the plant.
In recent years, however, improved roads, off-road motor vehicles, and air transportation have increased the global distribution of this perishable commodity, and as a result, the plant has been reported in England, Wales, Rome, Amsterdam, Canada, Israel, Australia, New Zealand, Water consumption is so high, groundwater levels in the Sanaa basin are diminishing, so government officials have proposed relocating large portions of the population of Sana'a to the coast of the Red Sea.
One reason for khat being cultivated in Yemen so widely is the high income it provides for farmers.
It has evergreen leaves, which are 5–10 cm (2–4 in) long and 1–4 cm (0.39–1.6 in) broad.
The shrub's flowers are produced on short axillary cymes that are 4–8 cm (1.6–3.1 in) in length. The samara fruit is an oblong, three-valved capsule, which contains one to three seeds.