Divisi
When to plant Cassava in Rungwe
Mbeya, United Republic of Tanzania
Known here as muhogo
Cassava is a hardy, woody shrub grown for its fat, starchy roots — a food that grows where little else will.
| Measure | Rain-fed | With irrigation |
|---|---|---|
| Fit | Favourable | |
| When to plant (establish) | 13 Oct 2026 – 2 Nov 2026 opens in 2 weeks | same |
| Expected harvest | about 22.4 t/ha | same |
| Bearing cycle | 240–730 days per crop once the plant is established. Planting to the first harvest takes longer than one cycle. | |
| Work it takes | 103–180 days per hectare, by hand | |
| Rain meets its needs | 90% | |
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 13 Oct 2026. That is the point in the window where the rains are most reliably established.
This season's outlook for Rungwe 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 2 Nov 2026 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Rungwe
| Rain and temperature | 96% |
|---|---|
| The soil | 96% |
| The lie of the land | 45% |
For cassava in Rungwe, 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 Rungwe
| Rainy seasons | One each year — one chance to plant, so timing carries it |
|---|---|
| When the rains are expected | October 2026 to June 2027 |
| Rain in a typical year | About 1,080 mm |
| This season's rain | Leaning wet — January, February, 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 +1.1 °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 | 4 kinds of ground. The season below is the largest that farms — about 37% of this area. |
| 37% | enough rain for one full main crop; warm all year, so nothing but rain ends the season 256 growing days · about 1,260 mm · October to July |
|---|---|
| 31% | enough rain for one full main crop; warm all year, so nothing but rain ends the season 251 growing days · about 1,720 mm · October to July |
| 22% | enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 272 growing days · about 1,980 mm · November to July |
| 7% | enough rain for one full main crop; warm all year, so nothing but rain ends the season 230 growing days · about 1,130 mm · October to June |
last updated 16 September 2026
Sloping ground holds back about 20% of yield here.
What cassava needs to grow here
| Soil it likes | well-drained sand or sandy loam soil |
|---|---|
| Soil sourness (pH) | Happiest between pH 4.5 and 6.5 |
| Spacing | 100 cm between rows, 100 cm between plants |
| Feed it most with | potassium and zinc |
What it takes to grow cassava in Rungwe
| Planting material | About 10,000 plants per hectare |
|---|---|
| Nitrogen (N) | About 110 kg per hectare |
| Phosphate (P₂O₅) | About 56 kg per hectare |
| Potash (K₂O) | About 157 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 | 103–180 days per hectare, by hand |
These are the nutrients a cassava 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 Cassava with a plan, not a guess
Everything above describes Rungwe 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.
Cassava 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 cassava grow well in Rungwe?
Rungwe rates as favourable for cassava.
When should I plant cassava in Rungwe?
Typically 13 Oct 2026 to 2 Nov 2026, forecast-adjusted.
Is this exact for my own field?
No — these are readings taken across Rungwe, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
