Divisi
When to plant Pumpkin in West Coast
Western Cape, South Africa
Known here as ithanga · pampoen · botterskorsie
Pumpkin and butternut are warm-season trailing vines of the squash family — Cucurbita moschata, the tough, heat- and disease-hardy squash bred for hot, humid Africa.
| Measure | Rain-fed | With irrigation |
|---|---|---|
| Fit | Favourable | |
| When to plant | 17 Apr 2027 – 7 May 2027 opens in 28 weeks | 30 Jun 2026 – 2 Mar 2027 |
| Expected harvest | 13.4–15.1 t/ha | about 22.2 t/ha |
| Harvest | From 16 Jul 2027 to 4 Sep 2027, depending on the planting date | |
| Ready to harvest | 90–120 days after planting | |
| Work it takes | 68–138 days per hectare, by hand | |
| Rain meets its needs | 83% | |
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 2027. That is the point in the window where the rains are most reliably established.
This season's rainfall outlook for West Coast is close to normal, so these dates match the pattern the area usually follows.
Planting after 7 May 2027 leaves the crop short of season: it runs into the dry months before it has finished filling.
What decides this in West Coast
| Rain and temperature | 88% |
|---|---|
| The soil | 76% |
| The lie of the land | 96% |
For pumpkin in West Coast, the soil is the tightest of the three at 76%. This is the one you can actually move. Lime raises a sour soil, manure and compost lift what it holds, and both work within a season or two — money spent here changes the answer.
The 2027 season in West Coast
| Rain in a typical year | About 187 mm |
|---|---|
| This season's rain | Rain close to usual — plan around about 187 mm falling roughly when it always does |
| What that supports | too dry for rain-fed cropping without irrigation, warm, with a cool spell that slows winter growth |
| Ground this covers | 3 kinds of ground. The season below is the largest that farms — about 53% of this area. |
| 53% | too dry for rain-fed cropping without irrigation; warm, with a cool spell that slows winter growth 84 growing days · about 210 mm |
|---|---|
| 40% | enough rain for one short crop, and only if timed to it; warm, with a cool spell that slows winter growth 139 growing days · about 330 mm · April to September |
| 4% | enough rain for one short crop, and only if timed to it; cool for part of the year, so frost sets the planting date 143 growing days · about 330 mm · April to September |
last updated 17 September 2026
Temperature holds back about 25% of yield here.
What pumpkin needs to grow here
| Soil it likes | well-drained sandy loam or loam soil |
|---|---|
| Soil sourness (pH) | Happiest between pH 6.0 and 7.0 |
| Rain it needs | About 600–1,600 mm across the season |
| Spacing | 180 cm between rows, 150 cm between plants |
| Feed it most with | nitrogen and potassium |
What it takes to grow pumpkin in West Coast
| Planting material | About 2,500 plants per hectare |
|---|---|
| Nitrogen (N) | About 36 kg per hectare |
| Phosphate (P₂O₅) | About 17 kg per hectare |
| Potash (K₂O) | About 58 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 | 68–138 days per hectare, by hand |
These are the nutrients a pumpkin 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 Pumpkin with a plan, not a guess
Everything above describes West Coast 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.
Pumpkin 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 pumpkin grow well in West Coast?
West Coast rates as favourable for pumpkin.
When should I plant pumpkin in West Coast?
Typically 17 Apr 2027 to 7 May 2027, forecast-adjusted.
Is this exact for my own field?
No — these are readings taken across West Coast, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.
