Divisi
When to plant Turmeric in Bomet
Kenya
Known here as manjano · binzari manjano
Turmeric is a leafy, ginger-like plant grown for the bright orange, aromatic rhizome (underground stem) hidden beneath it — the source of the yellow spice, the dye, and its own next-season seed.
| Measure | Rain-fed | With irrigation |
|---|---|---|
| Fit | Favourable | |
| When to plant | 7 Dec 2025 – 17 Nov 2026 open now | 21 Jan 2026 – 1 Jan 2027 |
| Expected harvest | about 16.4 t/ha | about 20.8 t/ha |
| Harvest | From 5 Jul 2026 to 13 Sep 2027, depending on the planting date | |
| Ready to harvest | 210–300 days after planting | |
| Work it takes | 159–282 days per hectare, by hand | |
| Rain meets its needs | 95% | |
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 17 Nov 2026. That is the point in the window where the rains are most reliably established.
This season's outlook for Bomet 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 17 Nov 2026 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Bomet
| Rain and temperature | 88% |
|---|---|
| The soil | 96% |
| The lie of the land | 60% |
For turmeric in Bomet, 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 Bomet
| When the rains are expected | December 2025 to December 2025 |
|---|---|
| Rain in a typical year | About 1,038 mm in a typical farming district |
| Across its districts | From about 1,038 mm in the driest of 5 districts to about 1,485 mm in the wettest |
| This season's rain | Leaning wet — 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 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 | 4 kinds of ground. The season below is one typical farming district's, not a figure for the whole of this area. |
| 84% | 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 1,200 mm · December to December |
|---|---|
| 8% | 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 1,390 mm · December to December |
| 5% | 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 1,200 mm · December to December |
| 3% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 279 growing days · about 900 mm · September to July |
last updated 16 September 2026 · from all 5 areas within it
What turmeric needs to grow here
| Soil it likes | well-drained sandy loam, loam or clay loam soil |
|---|---|
| Soil sourness (pH) | Happiest between pH 5.5 and 6.5 |
| Spacing | 50 cm between rows, 25 cm between plants |
| Feed it most with | potassium and nitrogen |
What it takes to grow turmeric in Bomet
| Nitrogen (N) | About 57 kg per hectare |
|---|---|
| Phosphate (P₂O₅) | About 13 kg per hectare |
| Potash (K₂O) | About 98 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 | 159–282 days per hectare, by hand |
These are the nutrients a turmeric 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 Turmeric with a plan, not a guess
Everything above describes Bomet 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.
Turmeric 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 turmeric grow well in Bomet?
Bomet rates as favourable for turmeric.
When should I plant turmeric in Bomet?
Typically 7 Dec 2025 to 17 Nov 2026, forecast-adjusted.
Is this exact for my own field?
No — these are readings taken across Bomet, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
