Crop guide · Brassica oleracea var. acephala
Kale (sukuma wiki): what to measure and why
Harvested leaf by leaf for months, sukuma wiki turns steady water and nitrogen directly into income. It is forgiving — which is why its losses tend to go unnoticed.
Also known as Sukuma wiki
Growing conditions
The ranges kale (sukuma wiki) cares about
General agronomic ranges. A soil test and your agronomist decide the final numbers for your variety and site.
| Factor | Range | Note |
|---|---|---|
| Air temperature | 15–25 °C | Heat makes leaves tough and bitter |
| Soil pH | 6.0–7.5 | Acid soil encourages clubroot |
| Water | steady, no long dry spells | Drought slows new leaf production |
Risks
Where kale (sukuma wiki) loses yield
Slow harvests
Moisture stress and low nitrogen both show as fewer, smaller leaves per picking, long before plants look sick.
Start with a walk around your farm.
The first conversation is a site visit: we walk the farm with you and understand what you grow or keep and what is going wrong. No cost, no commitment. Buy outright, lease, or pay as you go by M-Pesa.