Yam planting and harvest calendar
Usual sowing and harvest windows across 43 jurisdictions, transcribed at the granularity the official source publishes. About yam
Yam37
| Jurisdiction | Usual sowing | Usual harvest |
|---|---|---|
| A. Coastal Plains (AEZ I) (LBR001) | Mar 01 – Jun 30 | Nov 01 – Mar 31 |
| A. Terai Agro-ecological Zone (NPL001) | Jun 15 – Jul 15 | Nov 15 – Dec 15 |
| Adamaoua tray (CMR002) | Feb 01 – Apr 30 | Aug 01 – Nov 30 |
| B. Hill Agro-ecological Zone (NPL002) | Mar 15 – Jun 15 | Aug 15 – Sep 15 |
| B. Upper Highland Tropical Forest (AEZ II) (LBR002) | Mar 01 – Jun 30 | Nov 01 – Mar 31 |
| Busoga Farming System (UGA006) | Jan 20 – Dec 15 | May 20 – Jul 15 |
| C. Lower Tropical Forest (AEZ III) (LBR003) | Sep 01 – Oct 31 | May 01 – Jun 30 |
| Continental region (GNQ002) | Sep 15 – Oct 15 | Apr 01 – May 31 |
| D. Northern Savannah (AEZ IV) (LBR004) | Mar 01 – Jun 30 | Nov 01 – Mar 31 |
| Dry savannahs (TGO001) | Dec 30 – Jun 30 | Jul 01 – Mar 01 |
| Eastern Highlands (UGA010) | Mar 15 – Oct 10 | Aug 15 – May 10 |
| Forest Area (TGO003) | Dec 15 – May 31 | Jun 30 – Dec 31 |
| Insular region (GNQ001) | Jan 01 – Feb 28 | Aug 01 – Sep 30 |
| Lake Victoria Crescent (UGA007) | Mar 15 – Sep 15 | Jul 15 – Apr 15 |
| Littoral (TGO004) | Mar 01 – Apr 30 | Jul 01 – Dec 15 |
| Lows Northeast and East (BDI005) | Jan 01 – Dec 31 | Jan 01 – Dec 31 |
| North Coast Lowland (TLS001) | Sep 01 – Oct 01 | Jan 01 – Feb 01 |
| Northern Farming System (UGA003) | Apr 01 – Sep 30 | Aug 30 – Apr 30 |
| Northern Slopes (TLS002) | Sep 01 – Oct 01 | Jan 01 – Feb 01 |
| Northern Upland (TLS003) | Oct 30 – Nov 30 | Jun 30 – Jul 30 |
| Plain Imbo (BDI001) | Jan 01 – Dec 31 | Jan 01 – Dec 31 |
| Rain forest zone (GHA003) | Dec 10 – Mar 10 | Jul 10 – Dec 10 |
| Region I (ZMB003) | Nov 01 – Nov 30 | May 01 – Nov 30 |
| Region IIa (ZMB004) | Nov 01 – Nov 30 | May 01 – Nov 30 |
| Region IIb (ZMB002) | Nov 01 – Nov 30 | May 01 – Nov 30 |
| Region III (ZMB001) | Nov 01 – Nov 30 | May 01 – Nov 30 |
| Regions Central Highlands (BDI004) | Jan 01 – Dec 31 | Jan 01 – Dec 31 |
| South Coast Lowland (TLS006) | Sep 01 – Oct 01 | Jan 01 – Feb 01 |
| South Western Highlands (UGA011) | Apr 01 – Oct 10 | Aug 30 – May 10 |
| Southern Cameroonian tray (CMR003) | Feb 01 – Apr 30 | Aug 01 – Oct 31 |
| Southern Slopes (TLS005) | Sep 01 – Oct 01 | Jan 01 – Feb 01 |
| Southern Upland (TLS004) | Oct 30 – Nov 30 | Jun 30 – Jul 30 |
| Sudanian Zone (TCD001) | May 10 – Jun 25 | Sep 15 – Nov 15 |
| Sudano-Guinean Zone 1 (CIV002) | Mar 15 – Jun 30 | Oct 15 – Feb 15 |
| The Souadanienne Zone (GIN006) | Apr 10 – May 20 | Jan 15 – May 31 |
| Transitional zone (GHA004) | Dec 10 – Mar 10 | Jul 10 – Dec 10 |
| Western highlands (CMR005) | Nov 01 – Dec 31 | Jul 01 – Oct 31 |
Yam — season 13
| Jurisdiction | Usual sowing | Usual harvest |
|---|---|---|
| Sudanese Zone (CIV004) | Jan 01 – Mar 30 | Jul 01 – Feb 15 |
| Sudano-Guinean Zone 2 (CIV003) | Jan 01 – Mar 30 | Jul 01 – Feb 15 |
| Wet savannahs (TGO002) | Mar 01 – May 31 | Jun 30 – Jan 31 |
Yam — season 23
| Jurisdiction | Usual sowing | Usual harvest |
|---|---|---|
| Sudanese Zone (CIV004) | Apr 01 – Jun 30 | — |
| Sudano-Guinean Zone 2 (CIV003) | Apr 01 – Jun 30 | — |
| Wet savannahs (TGO002) | Dec 15 – Feb 15 | — |
Source
Periods are agro-ecological zone summaries published by FAO and validated by national authorities; they describe usual practice in a zone, not a recommendation for a field.
Tools for this
Each tool shows its formula, constants and sources, and starts empty — nothing is filled in from this page.
- Growing degree-days calculator
A calendar gives usual dates; degree-days give the heat accumulation behind them.
- Seed-rate calculator
Turn a planting decision into a seed rate.