Asda is to source its bunched beetroot and curly kale from Northern Ireland supplier Gilfresh Produce.
The Co Armagh business has become Asda's biggest local supplier of fresh vegetables since the supermarket arrived in Northern Ireland in 2005, and picked up the 'Asda NI Supplier of the Year Award' last year.
Asda Northern Ireland buyer David Quigg said the new deal highlights Asda's commitment to supporting local growers across Northern Ireland.
"We are delighted to be developing the strong links we already have with local farmers and producers across Northern Ireland. Since we arrived in 2005, we have been working closely with farmers to offer our customers the best of locally sourced produce," he said.
"We have built up a strong relationship with Gilfresh, and we are always impressed with just how fresh their produce is.
"We are constantly listening to our customers' feedback on our product range, and the one thing they always tell us is that they want to see more produce which is locally grown.
"We have also extended the shelf space in our recently opened stores in Antrim and Larne to accommodate our ever-increasing range of locally-sourced fresh food."
Gilfresh Produce commercial manager David Morrow said the new deal underlines the huge value the supermarket places on fresh, local produce.
"The addition of our new season beetroot and curly kale to the existing range we supply to Asda will give Asda's customers greater choice and variety when it comes to their fresh vegetables," he said.
"Asda is a real champion of local farmers and producers and we are delighted with the support they have shown us and farmers throughout Northern Ireland over the years."