Irish potato (Solanum tuberosum) is a major food and cash crop in Kenya, ranking second after maize in importance and playing a critical role in national food security and rural incomes. The crop is predominantly grown in the country’s cool highland regions, where environmental conditions are favourable for its growth. In 2024, the total area under Irish potato cultivation was estimated at about 225,000 hectares, reflecting its widespread adoption and increasing demand across both rural and urban markets. It thrives in high-altitude areas ranging between 1,200 and 3,000 metres above sea level, where temperatures are moderate and rainfall is sufficient.
Irish potatoes are widely cultivated on the slopes of Mount Kenya, particularly in Meru, Nyeri, and Kirinyaga counties, as well as in the Aberdare ranges covering Nyandarua, Murang’a, and Kiambu. Significant production also occurs in the Rift Valley highlands, including Nakuru, Molo, Timboroa, Uasin Gishu, Narok, and Bomet. Additional growing areas include Nandi, Trans Nzoia, Elgeyo-Marakwet, Kericho, and parts of Kisii, where both smallholder and large-scale farmers engage in production.
Nutritionally, Irish potatoes are highly valuable as they provide carbohydrates, which are a major source of energy. They are also rich in essential nutrients such as vitamin C, vitamin B6, and folate, along with important minerals including iron, calcium, magnesium, and zinc. In addition, they contain dietary fibre that supports digestion. These nutrients contribute to improved immunity, bone strength, and overall health, making Irish potatoes an important component of Kenyan diets.