Divisi
When to plant Pearl millet in Ruiru
Kiambu, Kenya
Known here as uwele · mawele · mwele
Pearl millet (Pennisetum glaucum) is the toughest grain you can grow.
| Measure | Rain-fed | With irrigation |
|---|---|---|
| Fit | Favourable | |
| When to plant | 1 Oct 2026 – 31 Oct 2026 open now | 29 Aug 2026 – 21 Jan 2027 |
| Expected harvest | about 1.7 t/ha | about 3.5 t/ha |
| Harvest | From 30 Nov 2026 to 28 Feb 2027, depending on the planting date | |
| Ready to harvest | 60–120 days after planting | |
| Work it takes | 75–150 days per hectare, by hand | |
| Rain meets its needs | 74% | |
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 1 Oct 2026. That is the point in the window where the rains are most reliably established.
This season's outlook for Ruiru 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 31 Oct 2026 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Ruiru
| Rain and temperature | 96% |
|---|---|
| The soil | 96% |
| The lie of the land | 88% |
For pearl millet in Ruiru, the lie of the land is the tightest of the three at 88%. 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 season in Ruiru
| Rainy seasons | Two each year — two chances to plant |
|---|---|
| When the rains are expected | February 2026 to June 2026 |
| Rain in a typical year | About 637 mm |
| This season's rain | Leaning wet — January, February, October, November 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 heat | Hotter than usual — about +1.0 °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 | 4 kinds of ground. The season below is the largest that farms — about 26% of this area. |
| 26% | enough rain for one short crop, and only if timed to it; warm all year, so nothing but rain ends the season 172 growing days · about 610 mm · February to June |
|---|---|
| 21% | enough rain for one full main crop; warm all year, so nothing but rain ends the season 184 growing days · about 690 mm · February to June |
| 21% | enough rain for one full main crop; warm all year, so nothing but rain ends the season 182 growing days · about 640 mm · February to June |
| 16% | enough rain for one short crop, and only if timed to it; warm all year, so nothing but rain ends the season 176 growing days · about 630 mm · February to June |
last updated 30 September 2026
Limited water holds back about 30% of yield here.
What pearl millet needs to grow here
| Soil it likes | well-drained sand or sandy loam soil |
|---|---|
| Soil sourness (pH) | Happiest between pH 5.5 and 7.0 |
| Spacing | 60 cm between rows, 12 cm between plants |
| Feed it most with | nitrogen and phosphorus |
What it takes to grow pearl millet in Ruiru
| Planting material | About 180,000 plants per hectare |
|---|---|
| Nitrogen (N) | About 45 kg per hectare |
| Phosphate (P₂O₅) | About 37 kg per hectare |
| Potash (K₂O) | About 67 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 | 75–150 days per hectare, by hand |
These are the nutrients a pearl millet 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 Pearl millet with a plan, not a guess
Everything above describes Ruiru 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.
Pearl millet 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 pearl millet grow well in Ruiru?
Ruiru rates as favourable for pearl millet.
When should I plant pearl millet in Ruiru?
Typically 1 Oct 2026 to 31 Oct 2026, forecast-adjusted.
Is this exact for my own field?
No — these are readings taken across Ruiru, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
