Divisi
When to plant Fonio in Butula
Busia, Kenya
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 | Favourable | |
| When to plant | 21 Jan 2027 – 22 Mar 2027 opens in 16 weeks | 21 Jan 2026 – 1 Jan 2027 |
| Expected harvest | about 1.4 t/ha | same |
| Harvest | From 22 Mar 2027 to 20 Jul 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-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 Feb 2027. That is the point in the window where the rains are most reliably established.
This season's rainfall outlook for Butula is close to normal, so these dates match the pattern the area usually follows.
Planting after 22 Mar 2027 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Butula
| Rain and temperature | 96% |
|---|---|
| The soil | 76% |
| The lie of the land | 88% |
For fonio in Butula, 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 2025 season in Butula
| When the rains are expected | January 2025 to January 2025 |
|---|---|
| Rain in a typical year | About 1,593 mm |
| This season's rain | Rain close to usual — plan around about 1,593 mm falling roughly when it always does |
| This season's heat | Hotter than usual — about +0.8 °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 88% of this area. |
| 88% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 361 growing days · about 1,550 mm · January to January |
|---|---|
| 12% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 359 growing days · about 1,560 mm · January to January |
last updated 30 September 2026
Frost and pest pressure hold back about 15% 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 Butula
| Nitrogen (N) | About 28 kg per hectare |
|---|---|
| Phosphate (P₂O₅) | About 8 kg per hectare |
| Potash (K₂O) | About 28 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 Butula 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 Butula?
Butula rates as favourable for fonio.
When should I plant fonio in Butula?
Typically 21 Jan 2027 to 22 Mar 2027, forecast-adjusted.
Is this exact for my own field?
No — these are readings taken across Butula, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
