Divisi
When to plant Grapefruit in Betroka
Anosy, Madagascar
Grapefruit (Citrus paradisi) is a big, dense evergreen citrus tree you plant once and pick from for decades.
| Measure | Rain-fed | With irrigation |
|---|---|---|
| Fit | Favourable | |
| When to plant (establish) | 17 Oct 2026 – 6 Nov 2026 opens in 2 weeks | 21 Jan 2026 – 1 Jan 2027 |
| Expected harvest | about 12.4 t/ha | about 37.1 t/ha |
| Bearing cycle | 360–420 days per crop once the plant is established. Planting to the first harvest takes longer than one cycle. | |
| Work it takes | 74–148 days per hectare, by hand | |
| Rain meets its needs | 64% | |
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 27 Oct 2026. That is the point in the window where the rains are most reliably established.
This season's rainfall outlook for Betroka leans dry, so these dates sit later than the long-run average. Planting on the date you are used to risks germinating into a false start and having to replant.
Planting after 6 Nov 2026 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in Betroka
| Rain and temperature | 96% |
|---|---|
| The soil | 76% |
| The lie of the land | 45% |
For grapefruit in Betroka, 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 Betroka
| Rainy seasons | One each year — one chance to plant, so timing carries it |
|---|---|
| When the rains are expected | November 2026 to April 2027 |
| Rain in a typical year | About 766 mm |
| This season's rain | Leaning dry — January, February and December look short of rain. Plant at the early end of the window, favour quicker and more drought-tolerant crops, and keep moisture in the soil: mulch, and weed early. |
| This season's heat | Hotter than usual — about +1.5 °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 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 72% of this area. |
| 72% | enough rain for one short crop, and only if timed to it; warm all year, so nothing but rain ends the season 151 growing days · about 780 mm · November to April |
|---|---|
| 17% | enough rain for one short crop, and only if timed to it; warm, with a cool spell that slows winter growth 168 growing days · about 880 mm · November to April |
| 8% | enough rain for one full main crop; warm all year, so nothing but rain ends the season 184 growing days · about 1,010 mm · October to April |
last updated 17 September 2026
Limited water holds back about 40% of yield here.
What grapefruit needs to grow here
| Soil it likes | well-drained loam or sandy loam soil |
|---|---|
| Soil sourness (pH) | Happiest between pH 6.0 and 6.5 |
| Spacing | 650 cm between rows, 650 cm between plants |
| Feed it most with | nitrogen, potassium, magnesium, zinc and boron |
What it takes to grow grapefruit in Betroka
| Planting material | About 240 plants per hectare |
|---|---|
| Nitrogen (N) | About 25 kg per hectare |
| Phosphate (P₂O₅) | About 5 kg per hectare |
| Potash (K₂O) | About 37 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 | 74–148 days per hectare, by hand |
These are the nutrients a grapefruit 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 Grapefruit with a plan, not a guess
Everything above describes Betroka 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.
Grapefruit 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 grapefruit grow well in Betroka?
Betroka rates as favourable for grapefruit.
When should I plant grapefruit in Betroka?
Typically 17 Oct 2026 to 6 Nov 2026, forecast-adjusted.
Is this exact for my own field?
No — these are readings taken across Betroka, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
