Divisi
When to plant Sunflower in Micheweni
Kaskazini Pemba, United Republic of Tanzania
Known here as alizeti
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 | 11 Apr 2027 – 10 Jun 2027 opens in 27 weeks | same |
| Expected harvest | about 2.4 t/ha | about 3.5 t/ha |
| Harvest | From 10 Jul 2027 to 18 Oct 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 1 May 2027. That is the point in the window where the rains are most reliably established.
This season's outlook for Micheweni 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 10 Jun 2027 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Micheweni
| Rain and temperature | 96% |
|---|---|
| The soil | 96% |
| The lie of the land | 76% |
For sunflower in Micheweni, 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 Micheweni
| When the rains are expected | January 2026 to January 2026 |
|---|---|
| Rain in a typical year | About 1,512 mm |
| This season's rain | Leaning wet — make sure water can drain off the field. |
| 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 | 2 kinds of ground. The season below is the largest that farms — about 68% of this area. |
| 68% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 351 growing days · about 1,510 mm · December to December |
|---|---|
| 32% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 335 growing days · about 1,420 mm · September to August |
last updated 16 September 2026
Frost and pest pressure hold back about 15% 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 Micheweni
| Planting material | About 50,000 plants per hectare |
|---|---|
| Nitrogen (N) | About 108 kg per hectare |
| Phosphate (P₂O₅) | About 48 kg per hectare |
| Potash (K₂O) | About 192 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 Micheweni 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 Micheweni?
Micheweni rates as favourable for sunflower.
When should I plant sunflower in Micheweni?
Typically 11 Apr 2027 to 10 Jun 2027, forecast-adjusted.
Is this exact for my own field?
No — these are readings taken across Micheweni, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
