The company plans to invest in the two hectare site after the £750,000 acquisition is complete.
The outlet has now been renamed Duxbury's Garden Centre.
Founder Frank Duxbury said: "We have bought the garden centre to complement our existing business interests.
"Our landscaping company has outgrown its current premises and in addition, we have plans for further expansion in 2013; including building a training facility to give our staff the best training possible; which will require extra space.
"Whilst the business has been successfully operating for three decades, we plan to improve the garden centre’s facilities; with changes to the car park and customer toilets.
"Additionally, we plan to develop the café, which will serve good food in comfortable surroundings; with leather settees and a log burning stove to add to the atmosphere. Children will be catered for with an undercover play area."
Alexander Mackie Associates were selling agents.