In most parts of the world, cassava is almost exclusively a rainfed crop. In areas with only one rainy season per year, farmers usually plant as soon as the rains start. Delaying planting can lead to drastic yield reductions. In areas with two relatively short rainy seasons per year, cassava can be planted in the early or middle part of either rainy season and harvested after 10 to 14 months, preferably during the dry season.