More than 840 dagga trees, each about 1.5 metres tall, were set alight, a Sapa correspondent reported.
The plantation was discovered by police on foot patrol on municipal-owned property, Brigadier Hangwani Mulaudzi said.
The owner of the dagga lived on the farm, but was not found at the scene, he said.
“We did not find him, but we managed to discover different suspected stolen goods and [these] were taken to the local police station.”
Several dogs left on the farm were rescued.
Mulaudzi said the destruction of the plantation would be a major blow to a marijuana ring suspected to be one of the main dealers in the province.