What grows in Otjiwarongo
Otjozondjupa, Namibia
The 2026/27 season in Otjiwarongo
| Rainy seasons | One each year — one chance to plant, so timing carries it |
|---|---|
| When the rains are expected | December 2026 to April 2027 |
| Rain in a typical year | About 456 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 +1.8 °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 92% of this area. |
| 92% | enough rain for one short crop, and only if timed to it; warm all year, so nothing but rain ends the season 100 growing days · about 410 mm · December to April |
|---|---|
| 5% | enough rain for one short crop, and only if timed to it; warm all year, so nothing but rain ends the season 103 growing days · about 410 mm · December to April |
| 3% | too dry for rain-fed cropping without irrigation; warm all year, so nothing but rain ends the season no rain-fed season · about 300 mm · January to March |
last updated 17 September 2026
What grows in Otjiwarongo
92% lowland, semi-arid, warm — 41 crops
-
Pearl milletFavourablePlant 14 Dec 2026 – 13 Jan 2027 opens in 11 weeks
matched to this season's forecast
1.8–2.2 t/ha expected
Irrigated: plant 29 Aug 2026 – 1 Jan 2027 · about 3.5 t/ha
Pest/disease risk — manageableSoil pH below the crop's optimumEarly-maturing — escapes late drought -
LablabFavourablePlant 14 Dec 2026 – 3 Jan 2027 opens in 11 weeks
matched to this season's forecast
1.4–1.6 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 2.0 t/ha
Pest/disease risk — manageableNot enough water in season -
Egusi melonFavourablePlant 14 Dec 2026 – 3 Jan 2027 opens in 11 weeks
matched to this season's forecast
0.8–1.0 t/ha expected
Irrigated: plant 29 Aug 2026 – 1 Jan 2027
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
SorghumFavourablePlant 14 Dec 2026 – 13 Jan 2027 opens in 11 weeks
matched to this season's forecast
2.5–3.2 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 5.0 t/ha
Pest/disease risk — manageableNot enough water in seasonEarly-maturing — escapes late drought -
SunflowerFavourablePlant 24 Dec 2026 – 13 Jan 2027 opens in 12 weeks
matched to this season's forecast
1.8–2.1 t/ha expected
· about 3.5 t/ha
Pest/disease risk — manageableEarly-maturing — escapes late drought -
WatermelonFavourablePlant 25 Dec 2026 – 3 Feb 2027 opens in 12 weeks
matched to this season's forecast
25.4–30.6 t/ha expected
Irrigated: plant 9 Aug 2026 – 2 Mar 2027 · about 50.0 t/ha
Pest/disease risk — manageableSoil pH outside the crop's rangeCorrect soil pH (acidifier) -
Green gramFavourablePlant 24 Dec 2026 – 23 Jan 2027 opens in 12 weeks
matched to this season's forecast
1.0–1.2 t/ha expected
Irrigated: plant 29 Aug 2026 – 21 Jan 2027 · about 2.0 t/ha
Pest/disease risk — manageableNot enough water in seasonEarly-maturing — escapes late drought -
CowpeaFavourablePlant 24 Dec 2026 – 2 Feb 2027 opens in 12 weeks
matched to this season's forecast
1.2–1.5 t/ha expected
Irrigated: plant 29 Aug 2026 – 10 Feb 2027 · about 2.5 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
Common beanFavourablePlant 24 Dec 2026 – 2 Feb 2027 opens in 12 weeks
matched to this season's forecast
1.6–2.0 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 3.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
PumpkinFavourablePlant 24 Dec 2026 – 23 Jan 2027 opens in 12 weeks
matched to this season's forecast
15.8–19.1 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 32.4 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
Niger seedFavourablePlant 27 Dec 2026 – 6 Jan 2027 opens in 13 weeks
based on the rains it usually gets
0.7–0.9 t/ha expected
Irrigated: plant 2 Mar 2027 – 30 Jun 2027
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
Jute mallowFavourablePlant 13 Jan 2027 – 22 Feb 2027 opens in 15 weeks
matched to this season's forecast
8.0–9.2 t/ha expected
Irrigated: plant 9 Aug 2026 – 22 Mar 2027 · about 13.9 t/ha
Pest/disease risk — manageableSoil pH below the crop's optimumEarly-maturing — escapes late drought -
CucumberFavourablePlant 13 Jan 2027 – 22 Feb 2027 opens in 15 weeks
matched to this season's forecast
about 16.8 t/ha expected
Irrigated: plant 10 Jun 2026 – 11 Apr 2027 · about 37.1 t/ha
Pest/disease risk — manageableSoil pH below the crop's optimumEarly-maturing — escapes late drought -
Sweet potatoFavourablePlant 7 Dec 2026 – 6 Jan 2027 opens in 10 weeks
based on the rains it usually gets
about 14.4 t/ha expected
Irrigated: plant 10 Feb 2027 – 19 Feb 2027 · about 35.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
TobaccoFavourablePlant 15 Dec 2026 – 14 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 1.8 t/ha expected
Irrigated: plant 21 May 2026 – 2 Mar 2027 · about 3.5 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
Bambara groundnutFavourablePlant 15 Dec 2026 – 4 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 1.2 t/ha expected
Irrigated: plant 9 Aug 2026 – 21 Jan 2027 · about 2.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
Finger milletFavourablePlant 15 Dec 2026 – 4 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 1.8 t/ha expected
Irrigated: plant 10 Jun 2026 – 21 Jan 2027 · about 3.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
SoybeanFavourablePlant 15 Dec 2026 – 4 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 1.7 t/ha expected
Irrigated: plant 30 Jun 2026 – 1 Jan 2027 · about 4.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
FonioFavourablePlant 15 Dec 2026 – 14 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 0.8 t/ha expected
Irrigated: plant 9 Aug 2026 – 21 Jan 2027 · about 1.5 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
African eggplantFavourablePlant 15 Dec 2026 – 14 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 12.4 t/ha expected
Irrigated: plant 9 Aug 2026 – 21 Jan 2027 · about 32.4 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
MaizeFavourablePlant 15 Dec 2026 – 4 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 3.2 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 9.3 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
TomatoFavourablePlant 15 Dec 2026 – 4 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 18.2 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 64.8 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
GroundnutFavourablePlant 15 Dec 2026 – 25 Dec 2026 opens in 11 weeks
matched to this season's forecast
about 1.3 t/ha expected
Irrigated: plant 9 Aug 2026 – 7 Dec 2026 · about 3.9 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
SesameFavourablePlant 15 Dec 2026 – 24 Dec 2026 opens in 11 weeks
matched to this season's forecast
about 0.5 t/ha expected
Irrigated: plant 9 Aug 2026 – 17 Nov 2026 · about 1.5 t/ha
Frost riskPest/disease risk — manageableNot enough water in season -
CarrotFavourablePlant 24 Dec 2026 – 13 Jan 2027 opens in 12 weeks
matched to this season's forecast
about 18.1 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 50.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
AmaranthFavourablePlant 24 Dec 2026 – 23 Jan 2027 opens in 12 weeks
matched to this season's forecast
about 9.2 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 27.8 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
WheatFavourablePlant 25 Dec 2026 – 4 Jan 2027 opens in 12 weeks
matched to this season's forecast
about 2.3 t/ha expected
Irrigated: plant 2 Mar 2027 – 20 Jul 2027 · about 6.5 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
Irish potatoFavourablePlant 27 Dec 2026 – 26 Jan 2027 opens in 13 weeks
based on the rains it usually gets
about 18.5 t/ha expected
Irrigated: plant 2 Mar 2027 – 20 Jul 2027 · about 41.7 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
OkraFavourablePlant 3 Jan 2027 – 2 Feb 2027 opens in 14 weeks
matched to this season's forecast
about 5.9 t/ha expected
Irrigated: plant 9 Aug 2026 – 2 Mar 2027 · about 15.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
African nightshadeFavourablePlant 4 Jan 2027 – 3 Feb 2027 opens in 14 weeks
matched to this season's forecast
about 9.8 t/ha expected
Irrigated: plant 30 Jun 2026 – 1 May 2027 · about 23.2 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
Spider plantFavourablePlant 4 Jan 2027 – 13 Feb 2027 opens in 14 weeks
matched to this season's forecast
about 5.2 t/ha expected
Irrigated: plant 20 Jul 2026 – 11 Apr 2027 · about 13.9 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
OnionFavourable
Plant 3 Jan 2027 – 23 Jan 2027 opens in 14 weeks
matched to this season's forecast
about 13.5 t/ha expected
Irrigated: plant 21 Jan 2027 – 29 Aug 2027 · about 41.7 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
BeetrootFavourablePlant 15 Feb 2027 – 25 Feb 2027 opens in 20 weeks
based on the rains it usually gets
about 14.4 t/ha expected
Irrigated: plant 2 Mar 2027 – 30 Jun 2027 · about 37.1 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
Swiss chardFavourablePlant 7 Dec 2026 – 27 Dec 2026 opens in 10 weeks
based on the rains it usually gets
about 14.2 t/ha expected
Irrigated: plant 10 Feb 2027 – 30 Jun 2027 · about 46.3 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
RoselleFavourablePlant 19 Dec 2026 – 29 Dec 2026 opens in 11 weeks
matched to this season's forecast
about 0.6 t/ha expected
Irrigated: plant 9 Aug 2026 – 7 Dec 2026 · about 1.5 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
EggplantFavourablePlant 19 Dec 2026 – 8 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 15.3 t/ha expected
Irrigated: plant 10 Jun 2026 – 10 Feb 2027 · about 46.3 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
ChilliFavourablePlant 15 Dec 2026 – 4 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 6.3 t/ha expected
Irrigated: plant 18 Sep 2026 – 29 Aug 2027 · about 23.2 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
Sweet pepperFavourablePlant 21 Dec 2026 – 31 Dec 2026 opens in 12 weeks
matched to this season's forecast
about 12.0 t/ha expected
Irrigated: plant 10 Feb 2027 – 10 Jun 2027 · about 37.1 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
RiceModeratePlant 14 Dec 2026 – 3 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 1.5 t/ha expected
Irrigated: plant 29 Aug 2026 – 1 Jan 2027 · about 5.9 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
LettuceModeratePlant 12 Feb 2027 – 4 Mar 2027 opens in 19 weeks
matched to this season's forecast
about 8.8 t/ha expected
Irrigated: plant 11 Apr 2027 – 20 Jul 2027 · about 32.4 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
KaleModeratePlant 15 Dec 2026 – 4 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 13.7 t/ha expected
Irrigated: plant 27 Dec 2026 – 9 Aug 2027 · about 46.3 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range
5% highland, semi-arid, warm — 39 crops
-
WatermelonFavourablePlant 4 Jan 2027 – 24 Jan 2027 opens in 14 weeks
matched to this season's forecast
25.5–30.2 t/ha expected
Irrigated: plant 9 Aug 2026 – 2 Mar 2027 · about 50.0 t/ha
Pest/disease risk — manageableSoil pH below the crop's optimum -
Jute mallowFavourablePlant 14 Jan 2027 – 23 Feb 2027 opens in 15 weeks
matched to this season's forecast
7.6–8.9 t/ha expected
Irrigated: plant 9 Aug 2026 – 22 Mar 2027 · about 13.9 t/ha
Pest/disease risk — manageableSoil pH below the crop's optimum -
Niger seedFavourablePlant 13 Dec 2026 – 2 Jan 2027 opens in 11 weeks
based on the rains it usually gets
0.7–0.8 t/ha expected
Irrigated: plant 2 Mar 2027 – 30 Jun 2027
Pest/disease risk — manageableSoil pH outside the crop's rangeCorrect soil pH (acidifier) -
Sweet potatoFavourablePlant 15 Dec 2026 – 4 Jan 2027 opens in 11 weeks
matched to this season's forecast
13.4–16.4 t/ha expected
Irrigated: plant 10 Feb 2027 – 19 Feb 2027 · about 35.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
Green gramFavourablePlant 15 Dec 2026 – 14 Jan 2027 opens in 11 weeks
matched to this season's forecast
1.0–1.2 t/ha expected
Irrigated: plant 29 Aug 2026 – 21 Jan 2027 · about 2.0 t/ha
Pest/disease risk — manageableSoil pH below the crop's optimum -
Pearl milletFavourablePlant 15 Dec 2026 – 25 Dec 2026 opens in 11 weeks
matched to this season's forecast
1.5–1.9 t/ha expected
Irrigated: plant 29 Aug 2026 – 1 Jan 2027 · about 3.5 t/ha
Pest/disease risk — manageableSoil pH below the crop's optimum -
LablabFavourablePlant 15 Dec 2026 – 4 Jan 2027 opens in 11 weeks
matched to this season's forecast
1.3–1.5 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 2.0 t/ha
Pest/disease risk — manageableSoil pH below the crop's optimum -
SorghumFavourablePlant 15 Dec 2026 – 4 Jan 2027 opens in 11 weeks
matched to this season's forecast
2.3–2.9 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 5.0 t/ha
Pest/disease risk — manageableSoil pH below the crop's optimum -
TobaccoFavourablePlant 15 Dec 2026 – 14 Jan 2027 opens in 11 weeks
matched to this season's forecast
1.6–2.0 t/ha expected
Irrigated: plant 21 May 2026 – 2 Mar 2027 · about 3.5 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
Bambara groundnutFavourablePlant 15 Dec 2026 – 4 Jan 2027 opens in 11 weeks
matched to this season's forecast
1.1–1.3 t/ha expected
Irrigated: plant 9 Aug 2026 – 21 Jan 2027 · about 2.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
SunflowerFavourablePlant 25 Dec 2026 – 14 Jan 2027 opens in 12 weeks
matched to this season's forecast
1.8–2.1 t/ha expected
· about 3.5 t/ha
Pest/disease risk — manageableSoil pH below the crop's optimum -
CowpeaFavourablePlant 25 Dec 2026 – 24 Jan 2027 opens in 12 weeks
matched to this season's forecast
1.1–1.4 t/ha expected
Irrigated: plant 29 Aug 2026 – 10 Feb 2027 · about 2.5 t/ha
Pest/disease risk — manageableSoil pH below the crop's optimum -
PumpkinFavourablePlant 25 Dec 2026 – 14 Jan 2027 opens in 12 weeks
matched to this season's forecast
15.6–18.7 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 32.4 t/ha
Pest/disease risk — manageableSoil pH outside the crop's rangeCorrect soil pH (acidifier) -
Common beanFavourablePlant 4 Jan 2027 – 24 Jan 2027 opens in 14 weeks
matched to this season's forecast
about 1.8 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 3.0 t/ha
Pest/disease risk — manageableSoil pH below the crop's optimum -
OkraFavourablePlant 4 Jan 2027 – 3 Feb 2027 opens in 14 weeks
matched to this season's forecast
about 6.5 t/ha expected
Irrigated: plant 9 Aug 2026 – 2 Mar 2027 · about 15.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
African nightshadeFavourablePlant 4 Jan 2027 – 3 Feb 2027 opens in 14 weeks
matched to this season's forecast
about 11.1 t/ha expected
Irrigated: plant 30 Jun 2026 – 1 May 2027 · about 23.2 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
CucumberFavourablePlant 14 Jan 2027 – 23 Feb 2027 opens in 15 weeks
matched to this season's forecast
about 17.8 t/ha expected
Irrigated: plant 10 Jun 2026 – 11 Apr 2027 · about 37.1 t/ha
Pest/disease risk — manageableSoil pH outside the crop's rangeCorrect soil pH (acidifier) -
BeetrootFavourablePlant 13 Feb 2027 – 23 Feb 2027 opens in 19 weeks
matched to this season's forecast
about 19.4 t/ha expected
Irrigated: plant 2 Mar 2027 – 30 Jun 2027 · about 37.1 t/ha
Pest/disease risk — manageableSoil pH below the crop's optimum -
Finger milletFavourablePlant 15 Dec 2026 – 25 Dec 2026 opens in 11 weeks
matched to this season's forecast
about 1.8 t/ha expected
Irrigated: plant 10 Jun 2026 – 21 Jan 2027 · about 3.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
SoybeanFavourablePlant 15 Dec 2026 – 4 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 1.8 t/ha expected
Irrigated: plant 30 Jun 2026 – 1 Jan 2027 · about 4.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
Egusi melonFavourablePlant 15 Dec 2026 – 25 Dec 2026 opens in 11 weeks
matched to this season's forecast
about 0.7 t/ha expected
Irrigated: plant 29 Aug 2026 – 1 Jan 2027
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
FonioFavourablePlant 15 Dec 2026 – 4 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 0.9 t/ha expected
Irrigated: plant 9 Aug 2026 – 21 Jan 2027 · about 1.5 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
MaizeFavourablePlant 15 Dec 2026 – 4 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 3.9 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 9.3 t/ha
Pest/disease risk — manageableNot enough water in season -
African eggplantFavourablePlant 15 Dec 2026 – 4 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 13.3 t/ha expected
Irrigated: plant 9 Aug 2026 – 21 Jan 2027 · about 32.4 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
WheatFavourablePlant 15 Dec 2026 – 4 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 2.6 t/ha expected
Irrigated: plant 2 Mar 2027 – 20 Jul 2027 · about 6.5 t/ha
Pest/disease risk — manageableSoil pH below the crop's optimum -
Sweet pepperFavourablePlant 15 Dec 2026 – 4 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 12.9 t/ha expected
Irrigated: plant 10 Feb 2027 – 10 Jun 2027 · about 37.1 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
AmaranthFavourablePlant 15 Dec 2026 – 14 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 10.1 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 27.8 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
EggplantFavourablePlant 15 Dec 2026 – 4 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 17.5 t/ha expected
Irrigated: plant 10 Jun 2026 – 10 Feb 2027 · about 46.3 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
TomatoFavourablePlant 15 Dec 2026 – 4 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 19.5 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 64.8 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
Swiss chardFavourablePlant 15 Dec 2026 – 4 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 16.9 t/ha expected
Irrigated: plant 10 Feb 2027 – 30 Jun 2027 · about 46.3 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
ChilliFavourablePlant 15 Dec 2026 – 4 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 7.2 t/ha expected
Irrigated: plant 18 Sep 2026 – 29 Aug 2027 · about 23.2 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
KaleFavourablePlant 15 Dec 2026 – 4 Jan 2027 opens in 11 weeks
matched to this season's forecast
about 16.3 t/ha expected
Irrigated: plant 27 Dec 2026 – 9 Aug 2027 · about 46.3 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
CarrotFavourablePlant 25 Dec 2026 – 14 Jan 2027 opens in 12 weeks
matched to this season's forecast
about 20.5 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 50.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
OnionFavourable
Plant 25 Dec 2026 – 14 Jan 2027 opens in 12 weeks
matched to this season's forecast
about 15.5 t/ha expected
Irrigated: plant 21 Jan 2027 – 29 Aug 2027 · about 41.7 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
Spider plantFavourablePlant 4 Jan 2027 – 13 Feb 2027 opens in 14 weeks
matched to this season's forecast
about 5.9 t/ha expected
Irrigated: plant 20 Jul 2026 – 11 Apr 2027 · about 13.9 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
Irish potatoFavourablePlant 26 Jan 2027 – 4 Feb 2027 opens in 17 weeks
matched to this season's forecast
about 20.3 t/ha expected
Irrigated: plant 2 Mar 2027 – 20 Jul 2027 · about 41.7 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
LettuceFavourablePlant 3 Feb 2027 – 5 Mar 2027 opens in 18 weeks
matched to this season's forecast
about 11.9 t/ha expected
Irrigated: plant 11 Apr 2027 – 20 Jul 2027 · about 32.4 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
GroundnutModeratePlant 15 Dec 2026 – 24 Dec 2026 opens in 11 weeks
matched to this season's forecast
about 0.9 t/ha expected
Irrigated: plant 9 Aug 2026 – 7 Dec 2026 · about 3.9 t/ha
Frost riskPest/disease risk — manageableNot enough water in season -
RiceModeratePlant 15 Dec 2026 – 25 Dec 2026 opens in 11 weeks
matched to this season's forecast
about 1.2 t/ha expected
Irrigated: plant 29 Aug 2026 – 1 Jan 2027 · about 5.9 t/ha
Frost riskPest/disease risk — manageableNot enough water in season
3% lowland, arid, warm — 37 crops
-
Jute mallowFavourablePlant 31 Jan 2027 – 20 Feb 2027 opens in 18 weeks
matched to this season's forecast
6.5–8.0 t/ha expected
Irrigated: plant 9 Aug 2026 – 22 Mar 2027 · about 13.9 t/ha
Pest/disease risk — manageableSoil pH outside the crop's rangeCorrect soil pH (acidifier) -
SunflowerFavourablePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
1.5–1.7 t/ha expected
· about 3.5 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
WatermelonFavourablePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
19.8–24.1 t/ha expected
Irrigated: plant 9 Aug 2026 – 2 Mar 2027 · about 50.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
LablabFavourablePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
1.1–1.3 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 2.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
Pearl milletFavourablePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
1.4–1.7 t/ha expected
Irrigated: plant 29 Aug 2026 – 1 Jan 2027 · about 3.5 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
Green gramFavourablePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
0.8–1.0 t/ha expected
Irrigated: plant 29 Aug 2026 – 21 Jan 2027 · about 2.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
Egusi melonFavourablePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
0.6–0.8 t/ha expected
Irrigated: plant 29 Aug 2026 – 1 Jan 2027
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
CowpeaFavourablePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
0.9–1.2 t/ha expected
Irrigated: plant 29 Aug 2026 – 10 Feb 2027 · about 2.5 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
Common beanFavourablePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
1.3–1.6 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 3.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
PumpkinFavourablePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
12.1–14.6 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 32.4 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
SorghumFavourablePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
1.9–2.4 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 5.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
TobaccoFavourablePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
1.4–1.7 t/ha expected
Irrigated: plant 21 May 2026 – 2 Mar 2027 · about 3.5 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
Bambara groundnutFavourablePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
about 0.9 t/ha expected
Irrigated: plant 9 Aug 2026 – 21 Jan 2027 · about 2.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
SoybeanFavourablePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
about 1.3 t/ha expected
Irrigated: plant 30 Jun 2026 – 1 Jan 2027 · about 4.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
African nightshadeFavourablePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
about 7.6 t/ha expected
Irrigated: plant 30 Jun 2026 – 1 May 2027 · about 23.2 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
Finger milletFavourablePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
about 1.3 t/ha expected
Irrigated: plant 10 Jun 2026 – 21 Jan 2027 · about 3.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
CucumberFavourablePlant 31 Jan 2027 – 2 Mar 2027 opens in 18 weeks
matched to this season's forecast
about 14.1 t/ha expected
Irrigated: plant 10 Jun 2026 – 11 Apr 2027 · about 37.1 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
OkraFavourablePlant 21 Jan 2027 – 10 Feb 2027 opens in 16 weeks
matched to this season's forecast
about 4.8 t/ha expected
Irrigated: plant 9 Aug 2026 – 2 Mar 2027 · about 15.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
Spider plantFavourablePlant 21 Jan 2027 – 10 Feb 2027 opens in 16 weeks
matched to this season's forecast
about 4.3 t/ha expected
Irrigated: plant 20 Jul 2026 – 11 Apr 2027 · about 13.9 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
African eggplantModeratePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
about 9.6 t/ha expected
Irrigated: plant 9 Aug 2026 – 21 Jan 2027 · about 32.4 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
CarrotModeratePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
about 13.1 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 50.0 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
FonioModeratePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
about 0.6 t/ha expected
Irrigated: plant 9 Aug 2026 – 21 Jan 2027 · about 1.5 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
AmaranthModeratePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
about 7.1 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 27.8 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
GroundnutModeratePlant 11 Jan 2027 – 21 Jan 2027 opens in 15 weeks
matched to this season's forecast
about 1.0 t/ha expected
Irrigated: plant 9 Aug 2026 – 7 Dec 2026 · about 3.9 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
TomatoModeratePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
about 13.9 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 64.8 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
SesameModeratePlant 11 Jan 2027 – 20 Jan 2027 opens in 15 weeks
matched to this season's forecast
about 0.4 t/ha expected
Irrigated: plant 9 Aug 2026 – 17 Nov 2026 · about 1.5 t/ha
Not enough water in seasonSoil pH outside the crop's rangeCorrect soil pH (acidifier) -
OnionModerate
Plant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
about 9.4 t/ha expected
Irrigated: plant 21 Jan 2027 – 29 Aug 2027 · about 41.7 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
MaizeModeratePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
about 2.2 t/ha expected
Irrigated: plant 21 Jan 2026 – 1 Jan 2027 · about 9.3 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
RiceModeratePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
about 1.2 t/ha expected
Irrigated: plant 29 Aug 2026 – 1 Jan 2027 · about 5.9 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
WheatModeratePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
about 1.8 t/ha expected
Irrigated: plant 2 Mar 2027 – 20 Jul 2027 · about 6.5 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH below the crop's optimum -
LettuceModeratePlant 10 Feb 2027 – 20 Feb 2027 opens in 19 weeks
matched to this season's forecast
about 5.9 t/ha expected
Irrigated: plant 11 Apr 2027 – 20 Jul 2027 · about 32.4 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
Swiss chardModeratePlant 2 Jan 2027 – 22 Jan 2027 opens in 13 weeks
based on the rains it usually gets
about 9.9 t/ha expected
Irrigated: plant 10 Feb 2027 – 30 Jun 2027 · about 46.3 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
RoselleModeratePlant 11 Jan 2027 – 21 Jan 2027 opens in 15 weeks
matched to this season's forecast
about 0.5 t/ha expected
Irrigated: plant 9 Aug 2026 – 7 Dec 2026 · about 1.5 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
EggplantModeratePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
about 12.1 t/ha expected
Irrigated: plant 10 Jun 2026 – 10 Feb 2027 · about 46.3 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
ChilliModeratePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
about 4.5 t/ha expected
Irrigated: plant 18 Sep 2026 – 29 Aug 2027 · about 23.2 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
KaleModeratePlant 11 Jan 2027 – 31 Jan 2027 opens in 15 weeks
matched to this season's forecast
about 9.1 t/ha expected
Irrigated: plant 27 Dec 2026 – 9 Aug 2027 · about 46.3 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range -
Sweet pepperModeratePlant 12 Jan 2027 – 22 Jan 2027 opens in 15 weeks
based on the rains it usually gets
about 7.4 t/ha expected
Irrigated: plant 10 Feb 2027 – 10 Jun 2027 · about 37.1 t/ha
Pest/disease risk — manageableNot enough water in seasonSoil pH outside the crop's range
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.
What grows in Otjiwarongo with irrigation
These need water applied — rain alone will not carry them here. The dates are the windows their own water supply allows.
-
GuavaFavourable Needs irrigationPlant 21 Jan 2026 – 1 Jan 2027 open now
matched to this season's forecast
about 35.0 t/ha expected
Pest/disease risk — manageable -
MangoFavourable Needs irrigationPlant 22 Mar 2026 – 2 Mar 2027 open now
matched to this season's forecast
about 25.0 t/ha expected
-
LemonFavourable Needs irrigationPlant 22 Mar 2026 – 2 Mar 2027 open now
matched to this season's forecast
about 37.1 t/ha expected
Soil pH outside the crop's rangeCorrect soil pH (acidifier)Correctable with liming -
Sweet orangeFavourable Needs irrigationPlant 21 Jan 2026 – 1 Jan 2027 open now
matched to this season's forecast
about 37.1 t/ha expected
Pest/disease risk — manageableSoil pH outside the crop's rangeCorrect soil pH (acidifier) -
AvocadoFavourable Needs irrigationPlant 22 Mar 2026 – 2 Mar 2027 open now
matched to this season's forecast
about 18.4 t/ha expected
Soil pH outside the crop's rangeCorrect soil pH (acidifier)Correctable with liming -
GrapefruitFavourable Needs irrigationPlant 21 Jan 2026 – 1 Jan 2027 open now
matched to this season's forecast
about 36.6 t/ha expected
Pest/disease risk — manageableSoil pH outside the crop's rangeCorrect soil pH (acidifier) -
MandarinFavourable Needs irrigationPlant 21 Jan 2026 – 1 Jan 2027 open now
matched to this season's forecast
about 31.9 t/ha expected
Pest/disease risk — manageableSoil pH outside the crop's rangeCorrect soil pH (acidifier) -
MoringaFavourable Needs irrigationPlant 21 Jan 2026 – 1 Jan 2027 open now
matched to this season's forecast
about 29.8 t/ha expected
Pest/disease risk — manageableSoil pH below the crop's optimum -
TeffFavourable Needs irrigationPlant 22 Mar 2027 – 9 Aug 2027 opens in 25 weeks
matched to this season's forecast
about 3.5 t/ha expected
Soil pH below the crop's optimumEarly-maturing — escapes late drought -
ChickpeaFavourable Needs irrigationPlant 10 Jun 2027 – 30 Jun 2027 opens in 36 weeks
matched to this season's forecast
about 3.0 t/ha expected
Pest/disease risk — manageableEarly-maturing — escapes late drought -
PapayaFavourable Needs irrigationPlant 10 Feb 2027 – 30 Jun 2027 opens in 19 weeks
matched to this season's forecast
about 64.8 t/ha expected
Soil pH below the crop's optimum -
TurmericFavourable Needs irrigationPlant 21 Jan 2026 – 1 Jan 2027 open now
matched to this season's forecast
about 27.8 t/ha expected
Frost riskSoil pH below the crop's optimumLate-maturing — drought risk -
LimeFavourable Needs irrigationPlant 2 Mar 2027 – 10 Jun 2027 opens in 22 weeks
matched to this season's forecast
about 23.2 t/ha expected
Soil pH outside the crop's rangeCorrect soil pH (acidifier)Correctable with liming -
YamFavourable Needs irrigationPlant 10 Jun 2026 – 28 Oct 2026 open now
matched to this season's forecast
about 23.2 t/ha expected
Soil pH outside the crop's rangeCorrect soil pH (acidifier)Correctable with liming -
CottonFavourable Needs irrigationPlant 20 Jul 2026 – 17 Nov 2026 open now
matched to this season's forecast
about 3.7 t/ha expected
Pest/disease risk — manageableLate-maturing — drought risk -
GingerFavourable Needs irrigationPlant 21 Jan 2026 – 1 Jan 2027 open now
matched to this season's forecast
about 24.5 t/ha expected
Frost riskPest/disease risk — manageableSoil pH outside the crop's range -
GarlicFavourable Needs irrigationPlant 2 Mar 2027 – 21 May 2027 opens in 22 weeks
matched to this season's forecast
about 16.7 t/ha expected
Late-maturing — drought risk -
CabbageFavourable Needs irrigationPlant 11 Apr 2027 – 30 Jun 2027 opens in 28 weeks
matched to this season's forecast
about 48.6 t/ha expected
Pest/disease risk — manageableSoil pH below the crop's optimumEarly-maturing — escapes late drought -
BananaFavourable Needs irrigationPlant 11 Apr 2027 – 1 May 2027 opens in 28 weeks
matched to this season's forecast
about 40.3 t/ha expected
Frost risk -
Pigeon peaFavourable Needs irrigationPlant 29 Aug 2026 – 28 Oct 2026 open now
matched to this season's forecast
about 1.2 t/ha expected
Frost riskPest/disease risk — manageableSoil pH below the crop's optimum -
SugarcaneFavourable Needs irrigationPlant 21 Jan 2026 – 1 Jan 2027 open now
matched to this season's forecast
about 58.3 t/ha expected
Frost riskPest/disease risk — manageable -
Passion fruitFavourable Needs irrigationPlant 21 Jan 2026 – 1 Jan 2027 open now
matched to this season's forecast
about 13.8 t/ha expected
Frost riskPest/disease risk — manageableSoil pH below the crop's optimum -
CassavaFavourable Needs irrigationPlant 21 Jan 2026 – 1 Jan 2027 open now
matched to this season's forecast
about 16.5 t/ha expected
Frost riskPest/disease risk — manageableSoil pH below the crop's optimum -
CashewFavourable Needs irrigationPlant 11 Apr 2027 – 30 Jun 2027 opens in 28 weeks
matched to this season's forecast
about 0.9 t/ha expected
Frost riskSoil pH below the crop's optimum -
TaroFavourable Needs irrigationPlant 10 Jun 2026 – 21 May 2027 open now
matched to this season's forecast
about 13.5 t/ha expected
Frost riskPest/disease risk — manageableSoil pH below the crop's optimum
What Divisi would not plant in Otjiwarongo
Every crop in the catalogue is scored against this district, not only the ones that work — so the list above is a decision rather than a shortlist. These are the rest, with what ruled each one out.
- Moringa Moderate — Water
- Papaya Moderate — Water
- Passion fruit Moderate — Water
- Cassava Moderate — Water
- Avocado Unsuitable — Water
- Banana Unsuitable — Water
- Cabbage Unsuitable — Temperature
- Cashew Unsuitable — Water
- Chickpea Unsuitable — Temperature
- Cocoa Unsuitable
- Coconut Unsuitable
- Taro Unsuitable — Water
- Arabica coffee Unsuitable — Water
- Robusta coffee Unsuitable
- Cotton Unsuitable — Temperature
- Enset Unsuitable
- Garlic Unsuitable — Temperature
- Ginger Unsuitable — Water
- Grapefruit Unsuitable — Water
- Guava Unsuitable — Water
- Lemon Unsuitable — Water
- Lime Unsuitable — Water
- Mandarin Unsuitable — Water
- Mango Unsuitable — Water
- Oil palm Unsuitable
- Pigeon pea Unsuitable — Temperature
- Pineapple Unsuitable — Water
- Sugarcane Unsuitable — Water
- Sweet orange Unsuitable — Water
- Tea Unsuitable
- Teff Unsuitable — Temperature
- Turmeric Unsuitable — Water
- Yam Unsuitable — Water
Divisi scored 74 crops against this district's own ground; 33 came back without a sowing date.
Plan the season, not just check it
The crops and dates above are read at cells spread across Otjiwarongo, and the map colours which kind of ground each part of it is. 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 firstThis 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.
Where to sell it nearby
Frequently asked questions
What crops grow well in Otjiwarongo?
Watermelon, Jute mallow, Bambara groundnut, Egusi melon, Lablab all rate well in Otjiwarongo — scored against its own rainfall, soil and terrain rather than a national average.
When should I plant Watermelon in Otjiwarongo?
In Otjiwarongo the window for Watermelon runs 4 Jan 2027 to 24 Jan 2027.
Is there a farming app that works in Otjiwarongo?
Divisi does. It reads Otjiwarongo's own rainfall, soil and terrain rather than a national average, so the planting dates and crop shortlist on this page are the same ones the app works out for a field here — then dates each job for that field, and keeps working with no signal.
Is this exact for my own field?
No — these are readings taken across Otjiwarongo, not on your field. Soil, slope and rainfall change from one farm to the next. Check your own location to see your own numbers.