Divisi
When to plant Green gram in Tarkwa Nsuaem
Western, Ghana
Green gram (also called mung bean or ndengu) is a fast, warm-weather bean that goes from seed to harvest in just 60–90 days — quick enough to dodge a dry spell and to slot in after your maize, sorghum or millet.
| Measure | Rain-fed | With irrigation |
|---|---|---|
| Fit | Favourable | |
| When to plant | 2 Mar 2026 – 8 Oct 2026 open now | 21 Jan 2026 – 1 Jan 2027 |
| Expected harvest | about 1.3 t/ha | about 1.8 t/ha |
| Harvest | From 1 May 2026 to 6 Jan 2027, depending on the planting date | |
| Ready to harvest | 60–90 days after planting | |
| Work it takes | 60–124 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 2 Mar 2026. That is the point in the window where the rains are most reliably established.
This season's rainfall outlook for Tarkwa Nsuaem 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 8 Oct 2026 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Tarkwa Nsuaem
| Rain and temperature | 96% |
|---|---|
| The soil | 96% |
| The lie of the land | 60% |
For green gram in Tarkwa Nsuaem, the lie of the land is the tightest of the three at 60%. 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 2025 season in Tarkwa Nsuaem
| When the rains are expected | January 2025 to January 2025 |
|---|---|
| Rain in a typical year | About 1,615 mm |
| This season's rain | Leaning dry. Plant at the early end of the window and favour quicker, more drought-tolerant crops. |
| This season's heat | Hotter than usual — about +0.6 °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 96% of this area. |
| 96% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 365 growing days · about 1,600 mm · January to January |
|---|---|
| 4% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 323 growing days · about 1,530 mm · February to December |
last updated 30 September 2026
What green gram needs to grow here
| Soil it likes | well-drained loam or sandy loam soil |
|---|---|
| Soil sourness (pH) | Happiest between pH 6.0 and 7.5 |
| Spacing | 37 cm between rows, 10 cm between plants |
| Feed it most with | phosphorus |
What it takes to grow green gram in Tarkwa Nsuaem
| Nitrogen (N) | About 52 kg per hectare — the crop fixes most of this itself; inoculated seed matters more than a bag |
|---|---|
| Phosphate (P₂O₅) | About 13 kg per hectare |
| Potash (K₂O) | About 23 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 | 60–124 days per hectare, by hand |
These are the nutrients a green gram 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 Green gram with a plan, not a guess
Everything above describes Tarkwa Nsuaem 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.
Green gram 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 green gram grow well in Tarkwa Nsuaem?
Tarkwa Nsuaem rates as favourable for green gram.
When should I plant green gram in Tarkwa Nsuaem?
Typically 2 Mar 2026 to 8 Oct 2026, forecast-adjusted.
Is this exact for my own field?
No — these are readings taken across Tarkwa Nsuaem, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
