Swincar Nurseries boss Andrew Fisher said: "I'm very proud to have installed this turbine. We did it to be green and to reduce energy costs."
The grower and retailer had the 15m high turbine, with 5.5m rotors, erected last month.
Fisher added: "It should give us two-thirds of the energy that the nursery needs.
"We are looking to develop our business and be at the forefront. As an industry we can't continue as we are - it's not sustainable.
"Gas and diesel costs have been crippling us for years now. Five years ago they were high, now they have doubled. So for us it's proved to be a very good investment."
The turbine will be connected to the National Grid through utilities company Opus Energy.
The company will buy any excess power generated by the turbine from Fisher and supply the nursery with power in periods of calm winds.