Divisi
When to plant Sorghum in Grande Comore (Ngazidja)
Comores
Sorghum (Sorghum bicolor — mapfunde, mtama, amabele, mapira, dawa, mashilla) is the toughest of the grain cereals: a tall, C4 grass that keeps standing and yields when heat and dry spells have already beaten maize.
| Measure | Rain-fed | With irrigation |
|---|---|---|
| Fit | Favourable | |
| When to plant | 24 Oct 2026 – 20 May 2027 opens in 3 weeks | 21 Jan 2026 – 1 Jan 2027 |
| Expected harvest | about 3.6 t/ha | about 4.5 t/ha |
| Harvest | From 22 Jan 2027 to 7 Oct 2027, depending on the planting date | |
| Ready to harvest | 90–140 days after planting | |
| Work it takes | 92–168 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 12 Jan 2027. That is the point in the window where the rains are most reliably established.
This season's rainfall outlook for Grande Comore (Ngazidja) is close to normal, so these dates match the pattern the area usually follows.
Planting after 20 May 2027 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Grande Comore (Ngazidja)
| Rain and temperature | 96% |
|---|---|
| The soil | 88% |
| The lie of the land | 60% |
For sorghum in Grande Comore (Ngazidja), the lie of the land is the tightest of the three at 60%. 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 2025 season in Grande Comore (Ngazidja)
| When the rains are expected | September 2025 to September 2025 |
|---|---|
| Rain in a typical year | About 2,140 mm in a typical farming district |
| Across its districts | From about 1,816 mm in the driest of 9 districts to about 2,242 mm in the wettest |
| This season's rain | Rain close to usual — plan around about 2,140 mm falling roughly when it always does |
| This season's heat | Hotter than usual — about +0.7 °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 | 3 kinds of ground. The season below is one typical farming district's, not a figure for the whole of this area. |
| 76% | 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 2,110 mm · September to September |
|---|---|
| 16% | 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 2,060 mm · September to September |
| 6% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 342 growing days · about 1,850 mm · September to September |
last updated 18 September 2026 · from all 9 areas within it
What sorghum needs to grow here
| Soil it likes | sandy loam, loam, clay loam or clay |
|---|---|
| Soil sourness (pH) | Happiest between pH 6.0 and 7.5 |
| Rain it needs | About 450–650 mm across the season |
| Spacing | 70 cm between rows, 15 cm between plants |
| Feed it most with | nitrogen, phosphorus, zinc and sulphur |
What it takes to grow sorghum in Grande Comore (Ngazidja)
| Planting material | About 100,000 plants per hectare |
|---|---|
| Nitrogen (N) | About 15 kg per hectare |
| Phosphate (P₂O₅) | About 6 kg per hectare |
| Potash (K₂O) | About 17 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 | 92–168 days per hectare, by hand |
These are the nutrients a sorghum 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 Sorghum with a plan, not a guess
Everything above describes Grande Comore (Ngazidja) 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.
Sorghum 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 sorghum grow well in Grande Comore (Ngazidja)?
Grande Comore (Ngazidja) rates as favourable for sorghum.
When should I plant sorghum in Grande Comore (Ngazidja)?
Typically 24 Oct 2026 to 20 May 2027, forecast-adjusted.
Is this exact for my own field?
No — these are readings taken across Grande Comore (Ngazidja), not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
