Four years after building Dunbar Garden Centre on a green-field site, the company has bought 14 acre former wholesale nursery at Ponteland near Newcastle-upon-Tyne.
Plantsplus had been trading as a retail nursery.
Cindy Redfearn, former manager of Berwick Garden Centre, is now general manager of the expanded business.
She is building the link between the production nursery and two retail establishments.
Plantsplus is in the process of transition between plant production and retail garden centre. Planning permission has been granted for retail use and a coffee shop, disabled access and enhanced car parking and shopping facilities.
Redfearn said: "This is an ideal opportunity for the three businesses to work together. They each have their own identity. Because we now have a viable horticultural enterprise, I’m looking forward to all three sharing the growing facility."
She added: Tthere has been renewed interest in UK based horticultural production facilities due to the weakening pound. Some selling agents report under-supply of suitable properties on the market. Due to the installation of a new biomass boiler, Plantsplus is well situated to benefit from these conditions."