Melanie Evans takes up position as regional manager for Wales and the borders this month.
In her new role, Ms Evans, who has 26 years of experience in the garden centre industry, will oversee the running of 12 garden centres in the region.
She said: "I was delighted to have been given the role... I have held several positions within The Garden Centre Group in the past but I left the business and helped launch a new garden centre near Hereford in 2006. I actually worked as regional manager for Wales and the borders 10 years ago for the Group so it's a role I'm used to.
"I am excited about returning to the Group and to my position... I look forward to working with garden centres to improve the general customer experience on-site."
Ms Evans will supervise the management of The Garden Centre Group's sites in her region, including Blooms Cardiff Garden Centre, Wyevale Swansea Garden Centre, Carmarthen Garden Centre, Pyle Garden Centre, Wyevale Hereford Garden Centre and Blooms Worcester Garden Centre.
She will also supervise Wyevale Thornbury Garden Centre, Nailsworth Garden Centre, Blooms Gloucester Garden Centre, Brockworth Garden Centre, Blooms Cheltenham Garden Centre and Keynsham Garden Centre.
Melanie has been involved with The Garden Centre Group during the past 20 years in positions including manager of Carmarthen Garden Centre and Wyevale Swansea Garden Centre, pet and aquatics buyer for the Group and also senior buyer, as well as regional manager.
The Garden Centre Group chief executive Nicholas Marshall said: "We are very pleased to welcome Melanie back to The Garden Centre Group and are sure that she will do a fantastic job."