Located in Barnstaple, North-West Devon, the 2,800 sqm garden centre will bring the size of the Wyevale estate to 142 centres. The centre will be renamed Ashford Barnstaple, a Wyevale Garden Centre.
Wyevale chief executive Kevin Bradshaw said: "With a strong heritage going back more than forty years, Ashford’s garden centre is renowned for the excellent quality of its plants and products as well as its welcoming family atmosphere.
"This acquisition supports our strategy to grow our business by acquiring exceptionally high-quality garden centres in the UK, and we are absolutely delighted to welcome Trelawney Ashford’s customers and employees to our business."
The site was bought by Trelawney in 2005. Trelawney has leased its main site and its proposed Probus site to Blue Diamond.
Trelawney’s David Danning said: "It has been our pleasure to own this centre and to learn how to manage a multi-site business as we have expanded Trelawney. However, our plans for the future have changed over the last year and the timing of an offer for the site came along at the right time for us and for the business.
"Investment from Wyevale Garden Centres will create opportunities that will be of great benefit to our employees, and I would like to thank our staff for all they have done for us over the last nine years."