The pop-star turned horticulturalist has officially opened the plant in Cheshire.
Miss Wilde, who has supported Dunweedin' since 2006, helped celebrate the occasion by planting a tree before touring the site in Middlewich on Thursday November 13.
The facility marks a major boost for Dunweedin' who recycle tyres into long-lasting mulch for weed control or loose fill for playgrounds.
The plant, which is part of a partnership between Dunweedin' and independent recycling group SITR, will let the firm increase production of its garden chippings range.
Bob Jones a director of Dunweedin', said: "Over just a few short years Dunweedin' has become one of the most exciting new products for gardening and landscaping.
"SITR is the largest independent recycling group in the UK and we are delighted by their commitment to the Dunweedin' brand and the potential it has across the UK and the rest of Europe."