Divisi
When to plant Sunflower in Sierra Leone
Sunflower is a tall, upright plant — about 1–2 m, higher than your head — that carries one big flower head on top.
| Measure | Rain-fed | With irrigation |
|---|---|---|
| Fit | Favourable | |
| When to plant | 5 Apr 2026 – 2 Oct 2026 open now | 22 Mar 2026 – 27 Dec 2026 |
| Expected harvest | about 1.8 t/ha | about 2.6 t/ha |
| Harvest | From 4 Jul 2026 to 9 Feb 2027, depending on the planting date | |
| Ready to harvest | 90–130 days after planting | |
| Work it takes | 74–155 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 17 Apr 2026. That is the point in the window where the rains are most reliably established.
This season's rainfall outlook for Sierra Leone is close to normal, so these dates match the pattern the area usually follows.
Planting after 2 Oct 2026 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Sierra Leone
| Rain and temperature | 88% |
|---|---|
| The soil | 96% |
| The lie of the land | 76% |
For sunflower in Sierra Leone, 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 Sierra Leone
| Rainy seasons | One each year — one chance to plant, so timing carries it |
|---|---|
| When the rains are expected | April 2026 to December 2026 |
| Rain in a typical year | About 2,598 mm in a typical farming district |
| Across its districts | From about 1,925 mm in the driest of 16 districts to about 3,372 mm in the wettest |
| This season's rain | Rain close to usual — plan around about 2,598 mm falling roughly when it always does |
| This season's heat | Hotter than usual — about +0.8 °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 | 3 kinds of ground. The season below is one typical farming district's, not a figure for the whole of this area. |
| 35% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 286 growing days · about 2,680 mm · March to December |
|---|---|
| 33% | enough rain for one full main crop; warm all year, so nothing but rain ends the season 259 growing days · about 2,820 mm · April to December |
| 30% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 308 growing days · about 2,510 mm · February to December |
last updated 18 September 2026 · from all 16 areas within it
Temperature holds back about 25% of yield here.
What sunflower 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 7.5 |
| Rain it needs | About 400–750 mm across the season |
| Spacing | 60 cm between rows, 25 cm between plants |
| Feed it most with | boron, nitrogen, phosphorus and potassium |
What it takes to grow sunflower in Sierra Leone
| Planting material | About 50,000 plants per hectare |
|---|---|
| Nitrogen (N) | About 81 kg per hectare |
| Phosphate (P₂O₅) | About 36 kg per hectare |
| Potash (K₂O) | About 144 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 | 74–155 days per hectare, by hand |
These are the nutrients a sunflower 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 Sunflower with a plan, not a guess
Everything above describes Sierra Leone 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.
Sunflower 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 sunflower grow well in Sierra Leone?
Sierra Leone rates as favourable for sunflower.
When should I plant sunflower in Sierra Leone?
Typically 5 Apr 2026 to 2 Oct 2026, forecast-adjusted.
Is this exact for my own field?
No — these are readings taken across Sierra Leone, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
