Divisi
When to plant Sweet potato in Sao Francisco de Assis
Tarrafal de Sao Nicolau, Cabo Verde
Sweet potato is a trailing vine you grow from vine cuttings (slips), not from seed and not by planting the root.
| Measure | Rain-fed | With irrigation |
|---|---|---|
| Fit | Moderate | |
| When to plant | 30 Jul 2027 – 19 Aug 2027 opens in 43 weeks | 11 Apr 2026 – 18 Sep 2026 |
| Expected harvest | about 5.7 t/ha | about 3.7 t/ha |
| Harvest | From 28 Oct 2027 to 16 Jan 2028, depending on the planting date | |
| Ready to harvest | 90–150 days after planting | |
| Work it takes | 70–148 days per hectare, by hand | |
| Rain meets its needs | 62% | |
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 30 Jul 2027. That is the point in the window where the rains are most reliably established.
No seasonal forecast reaches Sao Francisco de Assis yet, so these dates follow the rains it usually gets rather than this year's.
Planting after 19 Aug 2027 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Sao Francisco de Assis
| Rain and temperature | 96% |
|---|---|
| The soil | 96% |
| The lie of the land | 30% |
For sweet potato in Sao Francisco de Assis, the lie of the land is the tightest of the three at 30%. 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 2027 season in Sao Francisco de Assis
| Rainy seasons | One each year — one chance to plant, so timing carries it |
|---|---|
| When the rains are expected | August 2027 to October 2027 |
| Rain in a typical year | About 309 mm |
| This season's rain | Rain close to usual — plan around about 309 mm falling roughly when it always does |
| What that supports | enough rain for one short crop, and only if timed to it, warm all year, so nothing but rain ends the season |
| Ground this covers | 3 kinds of ground. The season below is the largest that farms — about 14% of this area. |
| 57% | too dry for rain-fed cropping without irrigation; warm all year, so nothing but rain ends the season no rain-fed season · about 240 mm · August to October |
|---|---|
| 29% | too dry for rain-fed cropping without irrigation; warm all year, so nothing but rain ends the season no rain-fed season · about 210 mm |
| 14% | enough rain for one short crop, and only if timed to it; warm all year, so nothing but rain ends the season 81 growing days · about 310 mm · August to October |
last updated 16 September 2026
Sloping ground holds back about 65% of yield here.
What sweet potato needs to grow here
| Soil it likes | well-drained sandy, sandy loam or loam soil |
|---|---|
| Soil sourness (pH) | Happiest between pH 5.0 and 6.5 |
| Rain it needs | About 750–1,000 mm across the season |
| Spacing | 100 cm between rows, 30 cm between plants |
| Feed it most with | potassium and nitrogen |
What it takes to grow sweet potato in Sao Francisco de Assis
| Planting material | About 33,000 plants per hectare |
|---|---|
| Nitrogen (N) | About 23 kg per hectare |
| Phosphate (P₂O₅) | About 9 kg per hectare |
| Potash (K₂O) | About 46 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 | 70–148 days per hectare, by hand |
These are the nutrients a sweet potato 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 Sweet potato with a plan, not a guess
Everything above describes Sao Francisco de Assis 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.
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 sweet potato grow well in Sao Francisco de Assis?
Sao Francisco de Assis rates as moderate for sweet potato.
When should I plant sweet potato in Sao Francisco de Assis?
Typically 30 Jul 2027 to 19 Aug 2027, typical season.
Is this exact for my own field?
No — these are readings taken across Sao Francisco de Assis, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
