Potato

Volcanic region with altitudes between 1,600 and 2,500m. Regular distributed rainfall, varying between 1,300 and 1,800mm and fertile, volcanic soils. The mean temperature is 17 ̊C.

This zone is characterized by highlands with altitudes varying between 1,900 and 2,300m. The Congo-Nile Watershed Divide is a mountainous ridge in the West of Rwanda that divides rivers on the West to drain into the Congo watershed and on the East side to drain into the Nile watershed. Annual rainfall in the North ranges from 1,700 to 2,000mm and in the East from 1,200 to 1,600mm. The exceptions are the tops of the Nyungwe forest mountains in the South, where annual rainfall exceeds 2,000mm. The Buberuka highlands in the North of Rwanda consist of high altitude plateaus that reach elevations of 2,300m. Annual rainfall is approximately 1,200mm and the dry season lasts for one to two months (June-July). Mean temperatures are between 15-18 ̊C. The soils of the Buberuka highlands are considerably more fertile than those of the Congo-Nile Watershed Divide.