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How to grow African nightshade
Solanum scabrum · Solanaceae
Photo: Krzysztof Ziarnek, Kenraiz · CC BY-SA 4.0
African nightshade (Solanum scabrum — mnavu, managu, osuga, nsugga, umsobo) is one of Africa's most-loved traditional leafy vegetables: soft, dark, iron- and vitamin-rich leaves that cook down fast and sell steadily at market. You grow it quickly from tiny, dust-fine seed — first raised close together in a small nursery, then transplanted into a rich bed — and then you harvest the same plants again and again (cut-and-come-again) for two to four months. It is a hungry, thirsty crop that pays you back in tender leaf when you keep feeding it nitrogen and keep its shallow roots moist. One warning: it is a cousin of tomato, potato, pepper and eggplant, so it catches the same bacterial wilt and blight — never plant it where those grew last season. And eat only the cooked leaves and the fully ripe, purple-black berries of cultivated types; unripe green berries and unknown wild forms can be poisonous.
Krzysztof Ziarnek, Kenraiz · CC BY-SA 4.0 
Krzysztof Ziarnek, Kenraiz · CC BY-SA 4.0
- Days to maturity
- 60–120 days
- Row spacing
- 40 cm
- Plant spacing in the row
- 20 cm
- Sowing depth
- 0.5–1 cm
These are general figures for the crop, compiled from published agronomic references including FAO and CABI. The right choice for your field depends on your soil, rainfall and the yield you are aiming for.
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Other names for African nightshade
nastergal · African nightshade · black nightshade · garden huckleberry · managu · nsugga · mnavu · mnafu · odu · umsobo · osuga
Working in buckets, bags or paces? The farming glossary turns the measures growers actually use into kilograms and hectares — what a 20 litre bucket of each crop really weighs, and how to size a field by walking it — alongside the Shona, Swahili, Ndebele and Yoruba words used in the field. Open the glossary →
Growing african nightshade, stage by stage
Your African nightshade season, step by step — raise strong seedlings in a nursery, transplant them into a rich, well-drained bed, feed and water them for tender leaf, then harvest the same plants again and again while dodging the wilt and blight of the tomato family.
- Sow the nursery and prepare the bed
- Build a fertile, well-drained bed
- Transplant and settle them in
- Feed and grow the leaf
- Harvest again and again
- Save seed and handle the leaf
12 step-by-step tasks in the app
Every task for african nightshade — what to do, when to do it and why it matters — with the amounts worked out for your own field, reminders as each one falls due, and warnings before extreme weather.
Pests and diseases that attack african nightshade
Divisi tells you which of these is a risk on your african nightshade right now, when to walk the field looking for it, and what to do the moment you find it.
Frequently asked questions
How long does african nightshade take to grow?
African nightshade takes about 60–120 days from sowing to maturity, though the exact length varies with variety, temperature and how the season runs.
What spacing should I use for african nightshade?
Space african nightshade rows about 40 cm apart, with roughly 20 cm between plants within the row.
How deep should african nightshade be planted?
Sow african nightshade at about 0.5–1 cm deep. Shallower risks drying out; deeper wastes seed energy before the shoot reaches light.
What pests and diseases attack african nightshade?
The ones covered in this guide are Early blight, Late blight. Each has its own page explaining how to identify, scout for and control it.
Grow african nightshade with a plan, not a guess
Divisi turns this guide into a dated plan for your own field — what to do each week, reminders as tasks fall due, and warnings before extreme weather. Free for farmers, works offline.
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