Corn grows extensively across Africa and is the continent’s most widely cultivated cereal crop. Known as maize throughout most of the world, it thrives in a wide range of African climates, from tropical lowlands to highland plateaus. About 70% of Africa’s maize is grown by smallholder farmers on plots that often measure just a few acres, making it both a food staple and a primary source of income for millions of households.
How Corn Arrived in Africa
Corn is not native to Africa. It originated in the Americas and arrived on the continent sometime in the 1500s, likely through multiple entry points. The most commonly cited route involves Portuguese traders who brought maize from the New World to the island of São Tomé in the Gulf of Guinea and then distributed it along the West African coast. A 17th-century Dutch account describes exactly this, noting that the crop “was unknown to the inhabitants before the arrival of the Portuguese.”
By the late 1500s, maize was already growing along the coast from the Gambia River to São Tomé, around the mouth of the Congo River, and possibly in Ethiopia. Within a century, references to the crop appear in Zanzibar and along the East African coast as well. Linguistic evidence published in the Journal of African History suggests maize spread inland from these coastal footholds, gradually replacing or supplementing traditional grains like sorghum and millet.
Where It Grows Today
Corn is cultivated in virtually every country in sub-Saharan Africa. The largest producers include South Africa, Nigeria, Ethiopia, Tanzania, and Kenya, though production scales vary dramatically. South Africa operates large commercial farms with mechanized harvesting, while countries like Nigeria rely on millions of small, fragmented plots. In Nigeria alone, up to 80% of maize is grown in multiple-cropping systems on small parcels of land.
Geography shapes how and where the crop is grown. In West Africa’s savanna regions, which supply roughly 65% of Nigeria’s maize output, farmers plant corn alongside legumes like soybeans, cowpeas, and groundnuts, or alongside other cereals such as sorghum. In southern regions, corn is intercropped with cassava and yam. These mixed planting systems evolved as practical strategies in areas where poor roads and limited infrastructure make it hard to access markets or buy inputs.
White Corn vs. Yellow Corn
African consumers strongly prefer white corn over yellow corn, a distinction that shapes markets across the continent. White maize is considered food for people. It’s what smallholder farmers grow for their families and sell as green (fresh) maize at local markets. Yellow maize, by contrast, is viewed primarily as animal feed and is sometimes used for brewing traditional drinks. This cultural preference is so strong that yellow maize consistently sells for less than white maize in southern African countries.
This preference has implications for nutrition efforts. Yellow and orange maize varieties contain provitamin A, a nutrient many African diets lack. Researchers have developed biofortified orange maize to address vitamin A deficiency, but convincing consumers to eat something they associate with livestock feed remains a challenge.
Yields Compared to the Rest of the World
Africa’s average maize yield sits around 2 tons per hectare. That figure has barely changed in recent decades. For comparison, the global average is roughly 6 tons per hectare, and farmers in the United States and parts of South America regularly exceed 10 tons. The gap comes down to several factors: most African maize is rainfed rather than irrigated, fertilizer and improved seed use remains low, and the intercropping systems that provide food security can limit the use of machinery for weeding, thinning, and harvesting.
The yield gap is not a reflection of poor soil or impossible growing conditions. Field trials in Nigeria have shown maize yields jump 16 to 32% simply by planting corn after a soybean crop, which naturally adds nitrogen to the soil. The potential is there, but access to inputs, credit, and extension services remains uneven.
The Fall Armyworm Problem
Since arriving in Africa around 2016, the fall armyworm has become the continent’s most destructive maize pest. This caterpillar, native to the Americas, feeds aggressively on corn leaves and ears. According to the Food and Agriculture Organization, it can reduce maize yields by up to 73% on affected farms and inflicts an estimated $9.4 billion in economic losses across Africa each year. The pest spreads quickly, reproduces year-round in tropical climates, and has proven difficult to control without access to affordable pesticides or biological management tools.
Drought-Tolerant Varieties
Drought is the other major threat to African corn production. Rainfall across much of the continent is unpredictable, and most maize depends entirely on rain. To address this, plant breeders have developed drought-tolerant maize varieties specifically for African growing conditions. These varieties don’t eliminate the risk of crop failure in severe droughts, but they provide meaningful insurance against the mid-season dry spells that frequently damage harvests.
The results are substantial. Under drought conditions, drought-tolerant hybrids yield about 40% more than standard commercial varieties. In southeastern Zimbabwe, households that planted drought-tolerant varieties harvested around 680 kilograms per hectare, compared to 436 kilograms per hectare for households using conventional seed. That 56% difference can mean the gap between having enough food for the year and running out before the next harvest. The best-performing new hybrids have outperformed widely grown farmer varieties by 35% under poor conditions and 50% under good conditions.
Adoption is growing but still limited. In some surveyed areas of Zimbabwe, only about 30% of farmers had switched to drought-tolerant varieties, with most of those choosing hybrid seed rather than open-pollinated types that can be saved and replanted.
Corn’s Role in African Diets
Corn is not just a crop in Africa. It is a dietary foundation. Across the continent, maize is ground into flour and cooked into thick porridges that go by different names in different regions: ugali in East Africa, sadza in Zimbabwe, pap in South Africa, fufu in parts of West Africa. It is also roasted on the cob as street food, fermented into beverages, and processed into snacks.
For smallholder families, the maize harvest determines food security for the entire year. Farmers typically grow corn first for household consumption and sell any surplus at local markets. In areas with poor transport infrastructure, small-scale markets have developed where maize and similar staples are locally processed and stored, creating self-contained food economies that operate largely outside formal supply chains. This deep dependence on a single crop makes yield losses from drought, pests, or poor soil fertility an immediate household crisis rather than an abstract economic statistic.