The biggest individual donor to the teal independent political candidates, Sydney share trader Rob Keldoulis, has added a new string to his impressive entrepreneurial bow – that of medicinal cannabis grower.

Mr Keldoulis, who runs Eastern Suburbs-based trading company VivCourt, paid $3 million for a 44.26-hectare turnkey marijuana farm south of Launceston, buying it from struggling ASX-listed medicinal cannabis and industrial hemp business ECS Botanics.