Divisi
When to plant Garlic in Roysambu
Nairobi, Kenya
Known here as kitunguu saumu · kitunguu thomu
Garlic (Allium sativum) is grown for its compound bulb — the head that splits into the cloves you cook with.
| Measure | Rain-fed | With irrigation |
|---|---|---|
| Fit | Favourable | |
| When to plant | 19 Feb 2027 – 1 Mar 2027 opens in 20 weeks | 22 Mar 2027 – 30 Jun 2027 |
| Expected harvest | about 6.5 t/ha | about 17.1 t/ha |
| Harvest | From 19 Jun 2027 to 27 Sep 2027, depending on the planting date | |
| Ready to harvest | 120–210 days after planting | |
| Work it takes | 123–248 days per hectare, by hand | |
| Rain meets its needs | 91% | |
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 Mar 2027. That is the point in the window where the rains are most reliably established.
No seasonal forecast reaches Roysambu yet, so these dates follow the rains it usually gets rather than this year's.
Planting after 1 Mar 2027 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Roysambu
| Rain and temperature | 88% |
|---|---|
| The soil | 96% |
| The lie of the land | 76% |
For garlic in Roysambu, the lie of the land is the tightest of the three at 76%. 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 Roysambu
| 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 748 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 full main crop, 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 70% of this area. |
| 70% | enough rain for one full main crop; warm all year, so nothing but rain ends the season 191 growing days · about 730 mm · February to June |
|---|---|
| 30% | enough rain for one full main crop; warm all year, so nothing but rain ends the season 230 growing days · about 840 mm · February to June |
last updated 30 September 2026
Temperature holds back about 25% of yield here.
What garlic needs to grow here
| Soil it likes | well-drained sandy loam or loam soil |
|---|---|
| Soil sourness (pH) | Happiest between pH 6.5 and 7.5 |
| Spacing | 30 cm between rows, 10 cm between plants |
| Feed it most with | sulphur, nitrogen and potassium |
What it takes to grow garlic in Roysambu
| Nitrogen (N) | About 65 kg per hectare |
|---|---|
| Phosphate (P₂O₅) | About 26 kg per hectare |
| Potash (K₂O) | About 65 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 | 123–248 days per hectare, by hand |
These are the nutrients a garlic 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 Garlic with a plan, not a guess
Everything above describes Roysambu 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.
Garlic 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 garlic grow well in Roysambu?
Roysambu rates as favourable for garlic.
When should I plant garlic in Roysambu?
Typically 19 Feb 2027 to 1 Mar 2027, typical season.
Is this exact for my own field?
No — these are readings taken across Roysambu, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
