Veld Assessment

Sweetveld vs Sourveld: What the Difference Means for Grazing

Why some veld feeds animals all year and some only in summer — and how to graze each without wrecking it.

FFrits van Oudtshoorn·30 May 2026·1 min read

Veld Assessment

Key takeaways

•Sweetveld stays palatable and nutritious through winter; sourveld becomes unpalatable and low in nutrients once it matures.

•The difference is driven mainly by soil fertility and rainfall, not by a single grass species.

•Match your grazing calendar to veld type: rest sourveld in summer, and never rely on it for winter grazing without supplementation.

Ask two farmers what "sourveld" means and you may get two answers. But the distinction between sweetveld and sourveld is one of the most useful frameworks for planning a grazing year in Southern Africa.

The core difference

Sweetveld retains its nutritional value and palatability into the dormant winter season — animals will graze it year-round and hold condition. Sourveld, by contrast, grows vigorously in summer but becomes fibrous, unpalatable and low in protein once it matures, so its winter grazing value collapses.

Mixed veld sits between the two and shares characteristics of both.

What drives it

The pattern tracks soil fertility and rainfall more than any single grass. Sweetveld tends to occur on more fertile soils in lower-rainfall areas; sourveld on leached, less fertile soils in higher-rainfall areas. The same species can even behave differently depending on where it grows.

Knowing which you have tells you how hard the veld can work for you and when it needs to rest.

Grazing implications

•Sweetveld can carry animals through winter, but its resilience tempts overstocking — watch condition closely.
•Sourveld must be grazed while it is still green and growing in summer; plan alternative winter feed rather than forcing animals onto rank, low-value material.
•On mixed veld, move animals to follow quality through the season.

If you are not sure which you are standing on, a proper veld-condition assessment — species composition, basal cover and grazing value — will tell you. The Guide to Grasses of Southern Africa is the standard reference for identifying the indicator species that give it away.

Sweetveld forgives; sourveld remembers. Graze each on its own terms.

Written by

Frits van Oudtshoorn

Grassland ecologist with thirty years of veld assessment and rehabilitation experience across Southern Africa. Author of the Guide to Grasses of Southern Africa and Veld Management: Principles & Practices.