Coffee remains a cornerstone of Uganda’s economy, supporting millions of households and contributing significantly to export earnings.
The country is Africa’s leading exporter of Robusta coffee, while also producing premium-quality Arabica in highland areas. Each type thrives under specific ecological conditions.
Robusta grows best in low- to mid-altitude areas between 900 and 1,500 metres above sea level and is widely cultivated across Central, Eastern, Mid-Western, and parts of Northern Uganda.
Improved Kawanda Robusta clones developed by national research institutions offer higher yields and greater tolerance to pests and diseases.
Arabica, by contrast, prefers cooler high-altitude zones ranging from 1,500 to 2,300 metres above sea level. It is mainly grown on the slopes of Mount Elgon, the Rwenzori Mountains, the West Nile Highlands, and in parts of Kabale District.
Popular varieties such as SL14, SL28, and KP423 are valued for their superior quality and fetch higher market prices, although they are more susceptible to diseases.
Agronomist Moses Lumu urged farmers to adopt sound practices to boost productivity and profitability. He highlighted that coffee performs best in areas with well-distributed annual rainfall of 1,200 to 2,000 millimetres.
Robusta prefers warmer temperatures between 18°C and 30°C, while Arabica thrives in cooler conditions of 15°C to 24°C.
“Moderate shade is essential for both Robusta and Arabica because it protects the plants from excessive heat, reduces moisture loss and ultimately improves yields,” Lumu said.
Many farmers integrate shade trees such as bananas, avocado, albizia, and ficus within their coffee gardens.
Lumu emphasized soil quality, noting that coffee requires deep, fertile, well-drained loamy soils. Waterlogged areas should be avoided to prevent root rot, and soil pH should range between 5.5 and 6.5, with agricultural lime applied to highly acidic soils.
He also advised farmers to plant quality seedlings from certified nurseries registered by the Uganda Coffee Development Authority, government distribution programs, or reputable private suppliers.
Healthy seedlings should be six to eight months old, have several leaf pairs, a strong root system, and be free of pests and diseases.
Planting at the onset of the rainy season ensures proper establishment, and maintaining adequate spacing improves sunlight penetration, reduces disease spread, and facilitates field management.
Coffee farmer Olivia Naddumba stressed the importance of consistent soil moisture, especially during the first two years.
“In areas that experience prolonged dry spells, supplementary irrigation can greatly improve plant survival and growth,” she said.
Mulching with dry grass, banana leaves, or coffee husks helps conserve moisture, suppress weeds, and enhance soil fertility.
While crop protection is vital, Naddumba cautioned against the misuse of agrochemicals, advising farmers to consult extension workers before applying pesticides.
Experts conclude that with proper site selection, quality planting materials, and good management practices, Ugandan farmers can increase yields, improve bean quality, and maximize returns from the country’s leading export crop.