Divisi
When to plant Sesame in Gisagara
Southern Province, Rwanda
Sesame — also called simsim or benniseed — is a tough, upright oilseed that grows from knee to shoulder height and gives a seed that is about half oil.
| Measure | Rain-fed | With irrigation |
|---|---|---|
| Fit | Favourable | |
| When to plant | 6 Sep 2026 – 23 Nov 2026 open now | 1 May 2026 – 17 Nov 2026 |
| Expected harvest | about 0.5 t/ha | same |
| Harvest | From 5 Dec 2026 to 2 Apr 2027, depending on the planting date | |
| Ready to harvest | 90–130 days after planting | |
| Work it takes | 65–129 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 6 Sep 2026. That is the point in the window where the rains are most reliably established.
This season's outlook for Gisagara 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 23 Nov 2026 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Gisagara
| Rain and temperature | 76% |
|---|---|
| The soil | 96% |
| The lie of the land | 45% |
For sesame in Gisagara, 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 2026/27 season in Gisagara
| Rainy seasons | One each year — one chance to plant, so timing carries it |
|---|---|
| When the rains are expected | September 2026 to June 2027 |
| Rain in a typical year | About 908 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 +1.2 °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 the largest that farms — about 45% of this area. |
| 45% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 287 growing days · about 910 mm · September to June |
|---|---|
| 31% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 303 growing days · about 1,010 mm · August to June |
| 14% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 295 growing days · about 960 mm · September to June |
| 6% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 277 growing days · about 860 mm · September to June |
last updated 17 September 2026
What sesame needs to grow here
| Soil it likes | well-drained sandy loam or loam soil |
|---|---|
| Soil sourness (pH) | Happiest between pH 5.5 and 7.5 |
| Rain it needs | About 300–600 mm across the season |
| Spacing | 37 cm between rows, 7 cm between plants |
| Feed it most with | nitrogen, phosphorus and boron |
What it takes to grow sesame in Gisagara
| Planting material | About 265,000 plants per hectare |
|---|---|
| Nitrogen (N) | About 28 kg per hectare |
| Phosphate (P₂O₅) | About 8 kg per hectare |
| Potash (K₂O) | About 25 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 | 65–129 days per hectare, by hand |
These are the nutrients a sesame 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 Sesame with a plan, not a guess
Everything above describes Gisagara 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.
Sesame 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 sesame grow well in Gisagara?
Gisagara rates as favourable for sesame.
When should I plant sesame in Gisagara?
Typically 6 Sep 2026 to 23 Nov 2026, forecast-adjusted.
Is this exact for my own field?
No — these are readings taken across Gisagara, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
