The 139-centre group changed its name from Wyevale Garden Centres in 2009. Meanwhile, David Mitchell has joined the company as a hardy nursery stock buyer.
He previously worked for Waitrose and Brinkmans. In other moves, TGCG's logistics are being tendered.
Haulier Norbert Dentressangle is now transporting a small amount of product. TGCG made no comment.