Divisi
When to plant African nightshade in South Africa
Known here as umsobo · nastergal
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.
| Measure | Rain-fed | With irrigation |
|---|---|---|
| Fit | Favourable | |
| When to plant | 13 Aug 2026 – 6 Oct 2026 open now | same |
| Expected harvest | 7.2–8.9 t/ha | about 23.7 t/ha |
| Harvest | From 12 Oct 2026 to 3 Feb 2027, depending on the planting date | |
| Ready to harvest | 60–120 days after planting | |
| Work it takes | 103–191 days per hectare, by hand | |
| Rain meets its needs | 69% | |
Rain-fed. These dates are worked out from each place's own rainfall, for a field watered by the season — with irrigation a window can open earlier, close later, or come round more than once a year. Check your own field under What grows, or get the Divisi app for a calendar dated to your farm.
If you only get one chance to plant, aim for around 13 Aug 2026. That is the point in the window where the rains are most reliably established.
This season's rainfall outlook for South Africa leans dry, so these dates sit later than the long-run average. Planting on the date you are used to risks germinating into a false start and having to replant.
Planting after 6 Oct 2026 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in South Africa
| Rain and temperature | 96% |
|---|---|
| The soil | 96% |
| The lie of the land | 45% |
For african nightshade in South Africa, the lie of the land is the tightest of the three at 45%. You cannot flatten it, but you can farm it: plant along the contour rather than up and down, ridge or tie ridges to hold water on the slope, and expect shallower rooting than the crop would manage on flat ground.
The 2026/27 season in South Africa
| Rainy seasons | One each year — one chance to plant, so timing carries it |
|---|---|
| When the rains are expected | October 2026 to April 2027 |
| Rain in a typical year | About 622 mm in a typical farming district |
| Across its districts | From about 72 mm in the driest of 52 districts to about 1,130 mm in the wettest |
| This season's rain | Leaning dry — January, February, November and December look short of rain. Plant at the early end of the window, favour quicker and more drought-tolerant crops, and keep moisture in the soil: mulch, and weed early. |
| This season's heat | Hotter than usual — about +1.9 °C over the growing months. Heat makes the same rain do less, so a dry spell bites sooner: do not plant late, and shade or mulch what you can. |
| What that supports | enough rain for one full main crop, warm, with a cool spell that slows winter growth |
| Ground this covers | 6 kinds of ground. The season below is one typical farming district's, not a figure for the whole of this area. |
| 48% | too dry for rain-fed cropping without irrigation; warm, with a cool spell that slows winter growth no rain-fed season · about 260 mm |
|---|---|
| 13% | enough rain for one short crop, and only if timed to it; warm, with a cool spell that slows winter growth 146 growing days · about 540 mm · November to April |
| 10% | enough rain for one full main crop; warm, with a cool spell that slows winter growth 212 growing days · about 750 mm · September to May |
| 6% | enough rain for one full main crop; cool for part of the year, so frost sets the planting date 211 growing days · about 700 mm · October to April |
| 3% | enough rain for one full main crop; warm, with a cool spell that slows winter growth 192 growing days · about 630 mm · October to April |
| 3% | enough rain for one short crop, and only if timed to it; warm all year, so nothing but rain ends the season 128 growing days · about 510 mm · November to March |
last updated 18 September 2026 · from all 52 areas within it
What african nightshade needs to grow here
| Soil it likes | well-drained sandy loam, loam or clay loam soil |
|---|---|
| Soil sourness (pH) | Happiest between pH 6.0 and 6.5 |
| Spacing | 40 cm between rows, 20 cm between plants |
| Feed it most with | nitrogen, phosphorus and potassium |
What it takes to grow african nightshade in South Africa
| Planting material | About 125,000 plants per hectare |
|---|---|
| Nitrogen (N) | About 33 kg per hectare |
| Phosphate (P₂O₅) | About 7 kg per hectare |
| Potash (K₂O) | About 42 kg per hectare |
| In the shops | A basal compound at planting — Compound D, or an NPK blend — covers the phosphate and potash. A nitrogen top dressing — urea or AN — goes on once the crop is established. |
| Hand work | 103–191 days per hectare, by hand |
These are the nutrients a african nightshade crop of that size carries off the field. What you actually apply depends on what your soil already holds — which is what a soil test, or the app's field records, tell you.
What to watch for
Grow African nightshade with a plan, not a guess
Everything above describes South Africa as a whole — your own soil, slope and rainfall will shift the dates. The Divisi app works them out for your field, and dates each job that follows.
African nightshade in nearby districts
This calendar moves
Planting windows shift with the forecast. Leave your email and we'll send what changed, and a note when planting time nears — a couple of emails a month at most.
Frequently asked questions
Will african nightshade grow well in South Africa?
South Africa rates as favourable for african nightshade.
When should I plant african nightshade in South Africa?
Typically 13 Aug 2026 to 6 Oct 2026, forecast-adjusted.
Is this exact for my own field?
No — these are readings taken across South Africa, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
