Divisi
When to plant African nightshade in Nkoranza South
Bono East, Ghana
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 | 7 Apr 2027 – 23 Sep 2027 opens in 27 weeks | 2 Mar 2026 – 7 Dec 2026 |
| Expected harvest | about 17.1 t/ha | about 23.2 t/ha |
| Harvest | From 6 Jun 2027 to 21 Jan 2028, depending on the planting date | |
| Ready to harvest | 60–120 days after planting | |
| Work it takes | 103–191 days per hectare, by hand | |
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 20 Apr 2027. That is the point in the window where the rains are most reliably established.
This season's rainfall outlook for Nkoranza South 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 23 Sep 2027 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Nkoranza South
| Rain and temperature | 96% |
|---|---|
| The soil | 96% |
| The lie of the land | 76% |
For african nightshade in Nkoranza South, the lie of the land is the tightest of the three at 76%. 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 season in Nkoranza South
| Rainy seasons | One each year — one chance to plant, so timing carries it |
|---|---|
| When the rains are expected | February 2026 to November 2026 |
| Rain in a typical year | About 1,157 mm |
| This season's rain | Leaning dry — September and October 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 +1.0 °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 a long crop, or two in a year, warm all year, so nothing but rain ends the season |
| Ground this covers | 2 kinds of ground. The season below is the largest that farms — about 71% of this area. |
| 71% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 273 growing days · about 1,150 mm · March to November |
|---|---|
| 29% | enough rain for one full main crop; warm all year, so nothing but rain ends the season 268 growing days · about 1,120 mm · March to November |
last updated 30 September 2026
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 Nkoranza South
| Planting material | About 125,000 plants per hectare |
|---|---|
| Nitrogen (N) | About 68 kg per hectare |
| Phosphate (P₂O₅) | About 14 kg per hectare |
| Potash (K₂O) | About 86 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 Nkoranza South 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 Nkoranza South?
Nkoranza South rates as favourable for african nightshade.
When should I plant african nightshade in Nkoranza South?
Typically 7 Apr 2027 to 23 Sep 2027, forecast-adjusted.
Is this exact for my own field?
No — these are readings taken across Nkoranza South, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
