Khat has been grown for use as a stimulant for centuries in the Horn of Africa and the Arabian Peninsula.
In Uganda it is grown in Central region, kasenge Nakawuka road and some parts of Western region of the Country .
the khat plant has over the years found its way to Southern Africa as well as tropical areas, where it grows on rocky outcrops and in woodlands.
The leaves or the soft part of the stem can be chewed with either chewing gum or fried peanuts to make it easier to chew.
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.
In 1980, the World Health Organization (WHO) classified it as a drug of abuse that can produce psychological dependence, It is a controlled substance in some countries, such as Canada, Germany, the United Kingdom, and the United States (de facto), while its production, sale, and consumption are legal in other nations, including Djibouti, Kenya, Uganda, Ethiopia, Somalia and Yemen.
Khat goes by various traditional names, such as kat, qat, qaad, ghat, chat, Abyssinian Tea, Somali Tea, Miraa, Arabian Tea, and Kafta in its endemic regions of the Horn of Africa and the Arabian Peninsula.The plants are watered heavily starting around a month before they are harvested to make the leaves and stems soft and moist.A good khat plant can be harvested four times a year, providing a year-long source of income for the farmer.Individuals become very talkative under the influence of the plant.The effects of oral administration of cathinone occur more rapidly than the effects of amphetamine pills; roughly 15 minutes as compared to 30 minutes in amphetamine.The shrub's flowers are produced on short axillary cymes that are 4–8 cm in length. The samara fruit is an oblong, three-valved capsule, which contains one to three seeds.