Divisi
When to plant Lablab in Dioundiou
Dosso, Niger
Lablab (also called hyacinth bean or dolichos; njahi in Swahili) is one of the toughest beans a smallholder can grow.
| Measure | Rain-fed | With irrigation |
|---|---|---|
| Fit | Favourable | |
| When to plant | 22 Jun 2027 – 12 Jul 2027 opens in 38 weeks | 17 Nov 2026 – 26 Nov 2026 |
| Expected harvest | about 1.0 t/ha | about 2.0 t/ha |
| Harvest | From 30 Sep 2027 to 9 Dec 2027, depending on the planting date | |
| Ready to harvest | 100–150 days after planting | |
| Work it takes | 75–156 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 22 Jun 2027. That is the point in the window where the rains are most reliably established.
No seasonal forecast reaches Dioundiou yet, so these dates follow the rains it usually gets rather than this year's.
Planting after 12 Jul 2027 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Dioundiou
| Rain and temperature | 60% |
|---|---|
| The soil | 88% |
| The lie of the land | 88% |
For lablab in Dioundiou, 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 2027 season in Dioundiou
| Rainy seasons | One each year — one chance to plant, so timing carries it |
|---|---|
| When the rains are expected | June 2027 to October 2027 |
| Rain in a typical year | About 569 mm |
| This season's rain | Rain close to usual — plan around about 569 mm falling roughly when it always does |
| 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 one short crop, and only if timed to it, 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 short crop, and only if timed to it; warm all year, so nothing but rain ends the season 134 growing days · about 600 mm · June to October |
|---|---|
| 4% | enough rain for one short crop, and only if timed to it; warm all year, so nothing but rain ends the season 138 growing days · about 630 mm · June to October |
last updated 17 September 2026
Temperature holds back about 50% of yield here.
What lablab needs to grow here
| Soil it likes | well-drained sand, sandy loam, loam, clay loam or clay soil |
|---|---|
| Soil sourness (pH) | Happiest between pH 5.0 and 7.5 |
| Spacing | 75 cm between rows, 30 cm between plants |
| Feed it most with | phosphorus |
What it takes to grow lablab in Dioundiou
| Nitrogen (N) | About 37 kg per hectare — the crop fixes most of this itself; inoculated seed matters more than a bag |
|---|---|
| Phosphate (P₂O₅) | About 9 kg per hectare |
| Potash (K₂O) | About 13 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 | 75–156 days per hectare, by hand |
These are the nutrients a lablab 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 Lablab with a plan, not a guess
Everything above describes Dioundiou 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.
Lablab 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 lablab grow well in Dioundiou?
Dioundiou rates as favourable for lablab.
When should I plant lablab in Dioundiou?
Typically 22 Jun 2027 to 12 Jul 2027, typical season.
Is this exact for my own field?
No — these are readings taken across Dioundiou, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
