Divisi
When to plant African nightshade in Koulse
Burkina Faso
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 | 12 Jul 2027 – 21 Jul 2027 opens in 41 weeks | 17 Nov 2026 – 7 Dec 2026 |
| Expected harvest | 12.6–15.6 t/ha | about 23.2 t/ha |
| Harvest | From 10 Sep 2027 to 18 Nov 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 | 93% | |
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 12 Jul 2027. That is the point in the window where the rains are most reliably established.
This season's rainfall outlook for Koulse is close to normal, so these dates match the pattern the area usually follows.
Planting after 21 Jul 2027 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Koulse
| Rain and temperature | 96% |
|---|---|
| The soil | 76% |
| The lie of the land | 76% |
For african nightshade in Koulse, the soil is the tightest of the three at 76%. This is the one you can actually move. Lime raises a sour soil, manure and compost lift what it holds, and both work within a season or two — money spent here changes the answer.
The 2027 season in Koulse
| Rainy seasons | One each year — one chance to plant, so timing carries it |
|---|---|
| When the rains are expected | June 2027 to September 2027 |
| Rain in a typical year | About 459 mm in a typical farming district |
| Across its districts | From about 459 mm in the driest of 3 districts to about 496 mm in the wettest |
| This season's rain | Rain close to usual — plan around about 459 mm falling roughly when it always does |
| 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 short crop, and only if timed to it, warm all year, so nothing but rain ends the season |
| Ground this covers | One kind of ground throughout. |
last updated 16 September 2026 · from all 3 areas within it
Frost and pest pressure hold back about 15% of yield here.
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 Koulse
| Planting material | About 125,000 plants per hectare |
|---|---|
| Nitrogen (N) | About 59 kg per hectare |
| Phosphate (P₂O₅) | About 12 kg per hectare |
| Potash (K₂O) | About 74 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 Koulse 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 Koulse?
Koulse rates as favourable for african nightshade.
When should I plant african nightshade in Koulse?
Typically 12 Jul 2027 to 21 Jul 2027, forecast-adjusted.
Is this exact for my own field?
No — these are readings taken across Koulse, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
