Divisi
When to plant Tomato in Githunguri
Kiambu, Kenya
Known here as nyanya
Tomato is the number-one cash vegetable across sub-Saharan Africa — and one of the most demanding.
| Measure | Rain-fed | With irrigation |
|---|---|---|
| Fit | Favourable | |
| When to plant | 23 Nov 2026 – 26 Jan 2027 opens in 8 weeks | 20 Jul 2026 – 7 Dec 2026 |
| Expected harvest | about 27.4 t/ha | about 53.9 t/ha |
| Harvest | From 21 Feb 2027 to 25 Jun 2027, depending on the planting date | |
| Ready to harvest | 90–150 days after planting | |
| Work it takes | 81–160 days per hectare, by hand | |
| Rain meets its needs | 85% | |
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 25 Dec 2026. That is the point in the window where the rains are most reliably established.
This season's outlook for Githunguri 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 26 Jan 2027 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Githunguri
| Rain and temperature | 96% |
|---|---|
| The soil | 76% |
| The lie of the land | 76% |
For tomato in Githunguri, 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 Githunguri
| When the rains are expected | August 2026 to August 2026 |
|---|---|
| Rain in a typical year | About 1,255 mm |
| This season's rain | Leaning wet — make sure water can drain off the field. |
| 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 the largest that farms — about 41% of this area. |
| 41% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 354 growing days · about 1,270 mm · February to January |
|---|---|
| 35% | enough rain for one full main crop; warm all year, so nothing but rain ends the season 245 growing days · about 1,000 mm · February to July |
| 18% | enough rain for one full main crop; warm all year, so nothing but rain ends the season 264 growing days · about 1,160 mm · September to July |
| 6% | 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 1,250 mm · August to August |
last updated 30 September 2026
What tomato needs to grow here
| Soil it likes | well-drained sandy loam, loam or clay loam soil |
|---|---|
| Soil sourness (pH) | Happiest between pH 6.0 and 6.8 |
| Spacing | 80 cm between rows, 40 cm between plants |
| Feed it most with | potassium, nitrogen, calcium and boron |
What it takes to grow tomato in Githunguri
| Planting material | About 33,000 plants per hectare |
|---|---|
| Nitrogen (N) | About 71 kg per hectare |
| Phosphate (P₂O₅) | About 19 kg per hectare |
| Potash (K₂O) | About 101 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 | 81–160 days per hectare, by hand |
These are the nutrients a tomato 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 Tomato with a plan, not a guess
Everything above describes Githunguri 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.
Where to sell Tomato nearby
Tomato 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 tomato grow well in Githunguri?
Githunguri rates as favourable for tomato.
When should I plant tomato in Githunguri?
Typically 23 Nov 2026 to 26 Jan 2027, forecast-adjusted.
Is this exact for my own field?
No — these are readings taken across Githunguri, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
