Divisi
When to plant Sweet potato in Ahafo
Ghana
Sweet potato is a trailing vine you grow from vine cuttings (slips), not from seed and not by planting the root.
| Measure | Rain-fed | With irrigation |
|---|---|---|
| Fit | Favourable | |
| When to plant | 17 Jun 2027 – 29 Jun 2027 opens in 37 weeks | 1 Jan 2026 – 30 Sep 2026 |
| Expected harvest | about 12.6 t/ha | same |
| Harvest | From 15 Sep 2027 to 26 Nov 2027, depending on the planting date | |
| Ready to harvest | 90–150 days after planting | |
| Work it takes | 70–148 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 17 Jun 2027. That is the point in the window where the rains are most reliably established.
No seasonal forecast reaches Ahafo yet, so these dates follow the rains it usually gets rather than this year's.
Planting after 29 Jun 2027 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Ahafo
| Rain and temperature | 60% |
|---|---|
| The soil | 96% |
| The lie of the land | 76% |
For sweet potato in Ahafo, rain and temperature is the tightest of the three at 60%. This one is fixed. It is why the planting window above is where it is — hitting those dates is the whole of your control here.
The 2026 season in Ahafo
| 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 1,189 mm in a typical farming district |
| Across its districts | From about 1,156 mm in the driest of 6 districts to about 1,301 mm in the wettest |
| 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 one typical farming district's, not a figure for the whole of this area. |
| 65% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 282 growing days · about 1,160 mm · February to November |
|---|---|
| 33% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 318 growing days · about 1,300 mm · February to December |
last updated 30 September 2026 · from all 6 areas within it
Temperature holds back about 45% of yield here.
What sweet potato needs to grow here
| Soil it likes | well-drained sandy, sandy loam or loam soil |
|---|---|
| Soil sourness (pH) | Happiest between pH 5.0 and 6.5 |
| Rain it needs | About 750–1,000 mm across the season |
| Spacing | 100 cm between rows, 30 cm between plants |
| Feed it most with | potassium and nitrogen |
What it takes to grow sweet potato in Ahafo
| Planting material | About 33,000 plants per hectare |
|---|---|
| Nitrogen (N) | About 50 kg per hectare |
| Phosphate (P₂O₅) | About 19 kg per hectare |
| Potash (K₂O) | About 101 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 | 70–148 days per hectare, by hand |
These are the nutrients a sweet potato 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 Sweet potato with a plan, not a guess
Everything above describes Ahafo 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.
Sweet potato 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 sweet potato grow well in Ahafo?
Ahafo rates as favourable for sweet potato.
When should I plant sweet potato in Ahafo?
Typically 17 Jun 2027 to 29 Jun 2027, typical season.
Is this exact for my own field?
No — these are readings taken across Ahafo, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
