Divisi
When to plant Fonio in Kalahari
Omaheke, Namibia
Fonio (Digitaria exilis) — also called acha, hungry rice, findi or fundi — is West Africa's ancient small grain and the fastest cereal in the world: early types give grain in about 70 to 85 days, some in as little as 6 to 8 weeks.
| Measure | Rain-fed | With irrigation |
|---|---|---|
| Fit | Moderate | |
| When to plant | 18 Dec 2026 – 27 Dec 2026 opens in 11 weeks | 29 Aug 2026 – 1 Jan 2027 |
| Expected harvest | about 0.5 t/ha | about 1.4 t/ha |
| Harvest | From 16 Feb 2027 to 26 Apr 2027, depending on the planting date | |
| Ready to harvest | 60–120 days after planting | |
| Work it takes | 82–175 days per hectare, by hand | |
| Rain meets its needs | 48% | |
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 18 Dec 2026. That is the point in the window where the rains are most reliably established.
No seasonal forecast reaches Kalahari yet, so these dates follow the rains it usually gets rather than this year's.
Planting after 27 Dec 2026 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Kalahari
| Rain and temperature | 96% |
|---|---|
| The soil | 76% |
| The lie of the land | 96% |
For fonio in Kalahari, the soil is the tightest of the three at 76%. This is the one you can actually move. Lime raises a sour soil, manure and compost lift what it holds, and both work within a season or two — money spent here changes the answer.
The 2026 season in Kalahari
| Rainy seasons | One each year — one chance to plant, so timing carries it |
|---|---|
| When the rains are expected | January 2026 to April 2026 |
| Rain in a typical year | About 382 mm |
| This season's rain | Leaning dry — January and February 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 +2.3 °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 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 | 3 kinds of ground. The season below is the largest that farms — about 22% of this area. |
| 64% | too dry for rain-fed cropping without irrigation; warm all year, so nothing but rain ends the season no rain-fed season · about 330 mm |
|---|---|
| 22% | enough rain for one short crop, and only if timed to it; warm all year, so nothing but rain ends the season 84 growing days · about 370 mm · January to March |
| 11% | enough rain for one short crop, and only if timed to it; warm all year, so nothing but rain ends the season 86 growing days · about 380 mm · January to April |
last updated 17 September 2026
Limited water holds back about 65% of yield here.
What fonio 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 |
| Feed it most with | nitrogen and phosphorus |
What it takes to grow fonio in Kalahari
| Nitrogen (N) | About 10 kg per hectare |
|---|---|
| Phosphate (P₂O₅) | About 3 kg per hectare |
| Potash (K₂O) | About 10 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 | 82–175 days per hectare, by hand |
These are the nutrients a fonio 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 Fonio with a plan, not a guess
Everything above describes Kalahari 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.
Fonio 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 fonio grow well in Kalahari?
Kalahari rates as moderate for fonio.
When should I plant fonio in Kalahari?
Typically 18 Dec 2026 to 27 Dec 2026, typical season.
Is this exact for my own field?
No — these are readings taken across Kalahari, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
