When to plant Bambara groundnut in Mungo

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Bambara groundnut

Huambo, Angola

Bambara groundnut (Vigna subterranea) is one of Africa's own beans — a tough, low, bushy plant, often grown by the women of the household on the poorest, sandiest land where maize would fail.

Bambara groundnut in Mungo, rain-fed and with irrigation
Measure Rain-fed With irrigation
Fit Favourable
When to plant 5 Sep 2026 – 13 Jan 2027 open now 30 Jun 2026 – 21 Jan 2027
Expected harvest about 1.9 t/ha same
Harvest From 4 Dec 2026 to 2 Jul 2027, depending on the planting date
Ready to harvest 90–170 days after planting
Work it takes 77–157 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 3 Jan 2027. That is the point in the window where the rains are most reliably established.

This season's outlook for Mungo leans wet. Plant at the early end of the window, and make sure water can drain off the field — a wet year does more damage through waterlogging than through the rain itself.

Planting after 13 Jan 2027 leaves the crop short of season: it runs into the dry months before it has finished filling.

What decides this in Mungo

Rain and temperature 96%
The soil 96%
The lie of the land 76%

For bambara groundnut in Mungo, 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 2026/27 season in Mungo

Rainy seasonsOne each year — one chance to plant, so timing carries it
When the rains are expectedSeptember 2026 to May 2027
Rain in a typical yearAbout 1,403 mm
This season's rainLeaning wet — January, February, October and December look heavier than usual. Make sure water can drain off the field; a wet year does more damage through waterlogging and disease than through the rain itself.
This season's heatHotter than usual — about +1.3 °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 supportsenough rain for one full main crop, warm all year, so nothing but rain ends the season
Ground this covers2 kinds of ground. The season below is the largest that farms — about 89% of this area.
Agro-ecological zones covering this area
89% enough rain for one full main crop; warm all year, so nothing but rain ends the season 249 growing days · about 1,390 mm · September to May
9% enough rain for one full main crop; warm all year, so nothing but rain ends the season 248 growing days · about 1,370 mm · September to May

last updated 16 September 2026

Frost and pest pressure hold back about 15% of yield here.

What bambara groundnut needs to grow here

Soil it likes well-drained sand or sandy loam soil
Soil sourness (pH) Happiest between pH 5.0 and 6.5
Spacing 40 cm between rows, 15 cm between plants
Feed it most with phosphorus and calcium

What it takes to grow bambara groundnut in Mungo

Planting materialAbout 125,000 plants per hectare
Nitrogen (N)About 95 kg per hectare — the crop fixes most of this itself; inoculated seed matters more than a bag
Phosphate (P₂O₅)About 19 kg per hectare
Potash (K₂O)About 48 kg per hectare
In the shopsA 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 work77–157 days per hectare, by hand

These are the nutrients a bambara groundnut 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

Pest/disease risk — manageable

Grow Bambara groundnut with a plan, not a guess

Everything above describes Mungo 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.

Or check your field first

Bambara groundnut 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 bambara groundnut grow well in Mungo?

Mungo rates as favourable for bambara groundnut.

When should I plant bambara groundnut in Mungo?

Typically 5 Sep 2026 to 13 Jan 2027, forecast-adjusted.

Is this exact for my own field?

No — these are readings taken across Mungo, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.

Also worth considering in Mungo

Keep going

Timing is one question. What the crop needs at every stage, what attacks it and where to sell it are the others.