Divisi
When to plant Common bean in Ouidah
Atlantique, Benin
The common bean is the number-one grain legume that people in East and Southern Africa eat straight from the pot — as dry beans (a pulse) or as fresh green/snap pods.
| Measure | Rain-fed | With irrigation |
|---|---|---|
| Fit | Favourable | |
| When to plant | 29 Mar 2027 – 3 Jul 2027 opens in 26 weeks | 21 Jan 2026 – 1 Jan 2027 |
| Expected harvest | about 2.5 t/ha | about 3.0 t/ha |
| Harvest | From 12 Jun 2027 to 31 Oct 2027, depending on the planting date | |
| Ready to harvest | 75–120 days after planting | |
| Work it takes | 81–185 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 10 Apr 2027. That is the point in the window where the rains are most reliably established.
This season's rainfall outlook for Ouidah 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 3 Jul 2027 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Ouidah
| Rain and temperature | 96% |
|---|---|
| The soil | 96% |
| The lie of the land | 88% |
For common bean in Ouidah, the lie of the land is the tightest of the three at 88%. 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 Ouidah
| Rainy seasons | One each year — one chance to plant, so timing carries it |
|---|---|
| When the rains are expected | March 2026 to November 2026 |
| Rain in a typical year | About 1,019 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. |
| What that supports | enough rain for one full main crop, 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 96% of this area. |
| 96% | enough rain for one full main crop; warm all year, so nothing but rain ends the season 252 growing days · about 1,030 mm · March to November |
|---|---|
| 4% | enough rain for one full main crop; warm all year, so nothing but rain ends the season 249 growing days · about 990 mm · March to November |
last updated 30 September 2026
Frost and pest pressure hold back about 15% of yield here.
What common bean needs to grow here
| Soil it likes | well-drained sandy loam, loam, silt loam or clay loam soil |
|---|---|
| Soil sourness (pH) | Happiest between pH 5.5 and 6.5 |
| Spacing | 50 cm between rows, 10 cm between plants |
| Feed it most with | phosphorus |
What it takes to grow common bean in Ouidah
| Planting material | About 175,000 plants per hectare |
|---|---|
| Nitrogen (N) | About 82 kg per hectare — the crop fixes most of this itself; inoculated seed matters more than a bag |
| Phosphate (P₂O₅) | About 28 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. Skip the nitrogen top dressing; inoculated seed does that job. |
| Hand work | 81–185 days per hectare, by hand |
These are the nutrients a common bean 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 Common bean with a plan, not a guess
Everything above describes Ouidah 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.
Common bean 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 common bean grow well in Ouidah?
Ouidah rates as favourable for common bean.
When should I plant common bean in Ouidah?
Typically 29 Mar 2027 to 3 Jul 2027, forecast-adjusted.
Is this exact for my own field?
No — these are readings taken across Ouidah, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
