When to plant Onion in Effutu Municipal

Central, Ghana

Onion is a cool-season vegetable you grow for its bulb — the swollen base of the leaves — but across sub-Saharan Africa it is most often grown as an irrigated hot dry-season crop, and it stands real heat (up to about 42 °C) as long as the water never stops.

Onion in Effutu Municipal, rain-fed and with irrigation
Measure	Rain-fed	With irrigation
Fit	Favourable
When to plant	1 Apr 2027 – 7 May 2027 opens in 26 weeks	21 Jan 2026 – 1 Jan 2027
Expected harvest	about 22.4 t/ha	about 33.8 t/ha
Harvest	From 30 Jun 2027 to 4 Sep 2027, depending on the planting date
Ready to harvest	90–120 days after planting

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 25 Apr 2027. That is the point in the window where the rains are most reliably established.

This season's rainfall outlook for Effutu Municipal 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 7 May 2027 leaves the crop short of season: it runs into the dry months before it has finished filling.

What decides this in Effutu Municipal

Rain and temperature	88%
The soil	96%
The lie of the land	88%

For onion in Effutu Municipal, rain and temperature is the tightest of the three at 88%. This one is fixed. It is why the planting window above is where it is — hitting those dates is the whole of your control here.

The 2027 season in Effutu Municipal

Rainy seasons	One each year — one chance to plant, so timing carries it
When the rains are expected	March 2027 to December 2027
Rain in a typical year	About 901 mm
This season's rain	Leaning dry — September, October and November 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.
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	3 kinds of ground. The season below is the largest that farms — about 70% of this area.

Agro-ecological zones covering this area
70%	enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 275 growing days · about 930 mm · March to December
20%	enough rain for a long crop, or two in a year; warm all year, so nothing but rain ends the season 282 growing days · about 990 mm · February to December
10%	enough rain for one full main crop; warm all year, so nothing but rain ends the season 262 growing days · about 850 mm · March to November

last updated 30 September 2026

Temperature holds back about 25% of yield here.

What onion 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
Spacing	20 cm between rows, 7 cm between plants
Feed it most with	nitrogen, potassium and sulphur

What it takes to grow onion in Effutu Municipal

Planting material	About 500,000 plants per hectare
Nitrogen (N)	About 40 kg per hectare
Phosphate (P₂O₅)	About 8 kg per hectare
Potash (K₂O)	About 45 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.

These are the nutrients a onion 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

Pest/disease risk — manageableEarly-maturing — escapes late drought

Grow Onion with a plan, not a guess

Everything above describes Effutu Municipal 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.

Or check your field first

Where to sell Onion nearby

Onion in nearby districts

How to grow Onion, step by step Land preparation to harvest — every task, in order

Frequently asked questions

Will onion grow well in Effutu Municipal?

Effutu Municipal rates as favourable for onion.

When should I plant onion in Effutu Municipal?

Typically 1 Apr 2027 to 7 May 2027, forecast-adjusted.

Is this exact for my own field?

No — these are readings taken across Effutu Municipal, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.