Divisi
When to plant Tea in Mathira
Nyeri, Kenya
Known here as chai
Tea (Camellia sinensis) is an evergreen highland bush you grow not for one harvest but as a living plucking table — a flat-topped hedge, kept pruned to about waist height, that pushes out soft new shoots again and again for a whole generation.
| Measure | Rain-fed | With irrigation |
|---|---|---|
| Fit | Favourable | |
| When to plant (establish) | 21 Jan 2027 – 1 May 2027 opens in 16 weeks | 21 Jan 2026 – 1 Jan 2027 |
| Expected harvest | about 3.1 t/ha | about 4.2 t/ha |
| Work it takes | 213–430 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 2 Mar 2027. That is the point in the window where the rains are most reliably established.
This season's outlook for Mathira 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 1 May 2027 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Mathira
| Rain and temperature | 96% |
|---|---|
| The soil | 96% |
| The lie of the land | 45% |
For tea in Mathira, the lie of the land is the tightest of the three at 45%. 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 Mathira
| When the rains are expected | August 2026 to August 2026 |
|---|---|
| Rain in a typical year | About 1,273 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 52% of this area. |
| 52% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 329 growing days · about 1,300 mm · February to January |
|---|---|
| 15% | 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 1,630 mm · January to December |
| 10% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 293 growing days · about 1,050 mm · September to July |
| 5% | enough rain for a long crop, or two in a year; cold for much of the year, with a short planting season 332 growing days · about 1,880 mm · January to December |
last updated 30 September 2026
What tea needs to grow here
| Soil it likes | well-drained sandy loam or loam soil |
|---|---|
| Soil sourness (pH) | Happiest between pH 4.5 and 5.5 |
| Spacing | 120 cm between rows, 60 cm between plants |
| Feed it most with | nitrogen, potassium and zinc |
What it takes to grow tea in Mathira
| Planting material | About 12,000 plants per hectare |
|---|---|
| Nitrogen (N) | About 155 kg per hectare |
| Phosphate (P₂O₅) | About 23 kg per hectare |
| Potash (K₂O) | About 78 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 | 213–430 days per hectare, by hand |
These are the nutrients a tea 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 Tea with a plan, not a guess
Everything above describes Mathira 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.
Tea 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 tea grow well in Mathira?
Mathira rates as favourable for tea.
When should I plant tea in Mathira?
Typically 21 Jan 2027 to 1 May 2027, forecast-adjusted.
Is this exact for my own field?
No — these are readings taken across Mathira, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
