Foundation · Course 1 of 8
Why indigenous crops matter
4 modules · 45 minutes · All levels·Free
This course is the foundation of everything Shiriki teaches. Before you plant a seed or build a market, you need to understand why this work matters — historically, nutritionally, ecologically, and economically. This course gives you that foundation in plain, honest language.
By the end of this course you will be able to
- Explain why indigenous crops were marginalised in African food systems — and why that marginalisation was a choice, not an inevitability
- Name at least 8 indigenous African crops and describe what makes each one distinctive
- Articulate the nutritional advantages of indigenous crops over the commercial crops that replaced them
- Identify three market opportunities for indigenous crops in your community right now
- Speak confidently about the cultural significance of indigenous food plants to your community, to buyers, and to institutions
Africa's original food system was extraordinarily diverse
For thousands of years before European colonisation, African farmers across the continent cultivated hundreds of crop varieties — each one selected and refined over generations to perform in the specific conditions of its home region.
These were not primitive crops. They were sophisticated food systems refined over millennia of farmer observation and selection — crops that were drought-tolerant, soil-restorative, nutritionally dense, and adapted to local conditions.
What changed — and why
The shift away from indigenous crops was not gradual or natural. It was deliberate, policy-driven, and happened over a relatively short period.
The result: within a few generations, crops that had been daily staples became associated with poverty, while imported crops became symbols of progress.
What remained — and who kept it
Indigenous crops survived in the margins of the formal food system — in community gardens, household plots, and the practices of older farmers who continued growing what they had always known.
This matters because the knowledge did not disappear. It survived in communities, seed collections, and intergenerational memory.
Think about the crops your grandparents or great-grandparents grew that are not common in formal markets today. Are any still grown in your community? This living knowledge is where indigenous crop revival begins.
Check your understanding
Module 1 · 3 questions · reflection
Why nutrition matters for this conversation
One of the most persistent myths about indigenous crops is that they are inferior to commercial varieties — that the shift to maize and wheat was nutritional progress.
The data tells a different story. In almost every nutritional dimension that matters for food security — protein, minerals, vitamins, essential amino acids, glycaemic index — indigenous African crops match or significantly outperform the commercial crops that replaced them.
Understanding these numbers strengthens your confidence when speaking to buyers, institutions, and community members, and connects indigenous crops directly to South Africa's urgent health challenges — malnutrition, diet-related disease, and food insecurity.
The numbers — crop by crop
Amadumbe (Colocasia esculenta)
Amadumbe / Madumbi (Zulu/SA) · Mufhongwe (Venda) · Taro (International) · Cocoyam / Ede (West Africa)
The amadumbe contains approximately 9g of protein per 100g — compared to the commercial potato's 1.9g.
It has a lower glycaemic index than potatoes, more fibre, and higher levels of potassium and magnesium.
Yet it sells at half the commercial profile of the potato in most SA markets because of perception, not nutritional merit.
Cowpea leaves (Vigna unguiculata / morogo)
Nyembe (Zulu) · Lebelebele (Sotho) · Kunde (Swahili) · Niébé (West Africa)
Fresh cowpea leaves contain 4.5g of protein per 100g — more than commercial spinach.
They are richer in iron, calcium, folate, and β-carotene than most commercial leafy vegetables.
In East Africa these leaves are called “sukuma wiki” — literally “push the week” — because they are nutritious enough and affordable enough to sustain a family through the week.
Moringa (Moringa oleifera)
Mvungula (Swahili) · Mupulanga (Zimbabwe) · Drumstick tree (English)
Dried moringa leaves contain 27g of protein per 100g — more than eggs and more than most legumes.
Per gram, moringa contains 17 times more calcium than milk, 7 times more Vitamin C than oranges, 15 times more potassium than bananas, and 25 times more iron than spinach.
These numbers are documented in peer-reviewed nutritional studies and verified by independent laboratories.
Finger millet (Eleusine coracana)
Uphoko (Zulu) · Wimbi (Swahili) · Ragi (India) · Tamba (West Africa)
Finger millet contains 344mg of calcium per 100g — more than milk.
It is gluten-free, has a low glycaemic index, and contains significant iron, zinc, and B vitamins.
For communities with limited dairy access, finger millet becomes a major nutritional resource.
The hidden cost of nutritional substitution
When indigenous crops were replaced by maize as the primary staple, African diets became more energy-dense but less nutritionally diverse.
Maize provides carbohydrate energy but is low in protein, micronutrients, and essential amino acids that indigenous legumes and leafy greens provide.
A diet centred on maize without indigenous greens, legumes, and tubers is nutritionally incomplete — and this incompleteness is visible in South Africa's rates of stunting, anaemia, and micronutrient deficiency.
This is not about criticising maize. It is about understanding what was lost when indigenous crops were pushed out of the system.
Compare the nutritional information on the back of a packet of commercial spinach, potatoes, and any grain product in your kitchen.
Write down the protein, calcium, and iron per 100g. Then compare them to amadumbe, cowpea leaves, and finger millet from this module.
Check your understanding
Module 2 · 3 questions + reflection
If you were speaking to a community member who believed that modern commercial food is more nutritious than indigenous crops, what three facts from this module would you use?
Think about your own diet. Are there indigenous crops your family eats that provide nutritional value you were not aware of?
How does the nutritional story change the way you think about the market value of indigenous crops?
What "climate-resilient" actually means
The term "climate-resilient" is used frequently in agricultural policy — but it is worth understanding what it means in practice for a farmer in Muldersdrift or Soweto.
A climate-resilient crop is one that can produce a meaningful harvest when conditions are not ideal — when rainfall is late, when it is hotter than expected, when soil fertility has been depleted by years of intensive cultivation.
Indigenous crops were selected by farmers over centuries for precisely these conditions. Commercial crops were selected in temperate climate research stations for maximum yield under ideal, heavily subsidised conditions.
Drought tolerance — which crops survive when rains fail
Sorghum (amabele / mabele)
Sorghum can produce a harvest in conditions that would result in total maize crop failure.
It uses water more efficiently than maize at every stage of growth, and can survive dry spells that would stress or kill commercial grain crops.
Bambara groundnut (Vigna subterranea)
Indlubu (Zulu) · Ditloo marapo (Setswana) · Njugo (Shona) · Nyimo (Zimbabwe) · Vigna subterranea (Scientific)
Bambara groundnut produces reliable harvests in poor, sandy soils with low rainfall — conditions where most commercial legumes would fail entirely.
Moringa (Moringa oleifera)
Moringa grows actively in semi-arid conditions, producing nutritious leaves through dry seasons when other crops are dormant.
Nitrogen fixation — crops that improve the soil while they grow
Several of the most important indigenous crops in the Shiriki collection are nitrogen-fixing legumes — meaning their root systems host bacteria that capture atmospheric nitrogen and convert it into a form that plants can use.
This is one of the most significant ecological services a crop can provide.
Growing cowpeas (nyembe / lebelebele), lablab (intebe), bambara groundnut (indlubu), or slenderleaf (Crotalaria — marejea in Swahili) actively improves the soil for every crop that follows.
A well-managed legume rotation can add 40–80kg of nitrogen per hectare per season — nitrogen that would otherwise cost R500–1,500 per hectare in synthetic fertiliser.
Soil health — the long view
Industrial maize monoculture — growing the same crop in the same soil season after season with heavy synthetic inputs — degrades soil over time.
Soil organic matter declines. The microbiological community that makes soil fertile is disrupted. Farmers need more and more input to maintain yields on soil that is becoming less and less productive.
Indigenous cropping systems — diverse, rotational, including leafy greens, legumes, grains, and tubers together — maintain soil health over time because they mimic the diversity of natural ecosystems.
This is the principle that underlies agroecology — and it is the principle that Shiriki's pilot farm demonstrates in practice.
Growing amadumbe next to cowpeas next to slenderleaf next to sorghum is not nostalgia. It is intelligent soil management.
If you are currently growing crops on a small plot, identify which of your crops are nitrogen-fixers and which are heavy nitrogen users.
Plan a simple rotation: grow a nitrogen-fixing legume (cowpeas, lablab, bambara groundnut) in one bed this season, then follow it next season with a leafy green or grain that benefits from improved soil nitrogen.
This is the simplest form of agroecological rotation.
Check your understanding
Module 3 · 3 questions + reflection
On the land you farm or are planning to farm — what are the current soil health challenges?
How could including nitrogen-fixing indigenous legumes in your cropping plan address those challenges?
Climate change is already affecting farming in Gauteng. Which indigenous crop from this module do you feel most addresses the specific climate challenges your community faces?
Three distinct markets — each with different buyers and different dynamics
Market 1: The community and informal market
The most accessible and immediate market for indigenous crop producers is the community and informal market — township markets, roadside stands, informal vegetable sellers, and community gardens that sell their surplus.
Here, morogo, amadumbe, okra, and fresh cowpeas are already sold and already bought by people who know exactly what they are purchasing.
This market does not require you to educate your customer. It requires you to produce consistently and show up reliably.
A regular stall with a consistent supply of fresh morogo and amadumbe can generate predictable weekly income from the beginning of production.
Market 2: The diaspora and specialty market
Johannesburg has one of the most diverse African diaspora populations on the continent — Nigerian, Ghanaian, Kenyan, Tanzanian, Ugandan, Congolese, Ethiopian, and many others.
These communities are actively looking for ingredients they cannot reliably source locally — fresh ewedu, bitter leaf, finger millet, bambara groundnut, cowpea flour, and garden egg.
This market is concentrated in areas like Mayfair, Fordsburg, Yeoville, and parts of the Johannesburg CBD.
African specialty grocers will buy from reliable local producers. The key is consistency — reliable weekly supply matters more than occasional surplus.
Ewedu (Yoruba/Nigeria) · Mrenda (Luhya/Kenya) · Lalo (West Africa) · Molokhia (Egypt/Middle East) · Saluyot (Philippines)
Market 3: The restaurant and specialty food market
South Africa's restaurant and specialty food scene is moving toward heritage ingredients, provenance-driven menus, and authentic local flavours.
Chefs are actively looking for ingredients that make their menus distinctive — and indigenous African crops offer exactly that.
Lablab beans, amadumbe mash, jute mallow sauce, bambara hummus, and sorghum-based dishes are appearing on menus across the country.
The chef who discovers your crop is not just a buyer — they become a story, a social media post, and a reason customers return.
How to start — before you have a farm
You do not need a fully operational farm to begin exploring the market. Start with conversations.
Visit African specialty grocers in Mayfair and ask if they would buy locally grown fresh ewedu. Visit farmers markets and observe which indigenous vegetables are being sold and at what prices.
Ask restaurants whether they have worked with amadumbe, lablab beans, or morogo before.
These conversations take less than a day and teach you more about the market than months of theory.
Visit one community market or informal vegetable seller near you.
Note which indigenous vegetables are being sold, their prices, and who is buying them.
Then visit an African specialty grocer and ask whether they would stock fresh jute mallow, bambara groundnut, bitter leaf, or garden egg.
Record your findings. This becomes your first piece of primary market research.
Check your understanding
Module 4 · 3 questions + reflection
Looking at the three markets described in this module — community/informal, diaspora/specialty, and restaurant/specialty food — which one feels most accessible to you right now?
What would it take to make your first sale in that market?
Is there a specific indigenous crop in the Shiriki collection that you feel a nearby community is underserved for?
What is the biggest barrier you personally face in accessing these markets — and what is one practical thing you could do this week to begin addressing it?