Bake Off producer Love Productions or Big Brother producer Endemol could take over producing the 50-year old BBC series Gardeners' World next year.
The series has alwyas been produced in-house but a government White Paper this year said all non-news on the BBC must be offered out for a competitive tender. Currently, half production is. The BBC keeps intellectual property rights.
Gardeners' World executive producer Paolo Proto formerly produced Great British Bake Off.
He has trialled a host of new presenters in the current series, which is going an hour long before it ends to make up for programmes cut or moved for sport this summer. He plans 50th anniversary events for the show, including a possible permanent anniversary garden.
Adam Frost has taken the biggest role among new presenters, with Nick Bailey, Florence Headlam, Nick Macer, Jane Moore, Alan Power, Zephania Lindo, Danny Clarke and Francis Tophill also fronting segments.
The government has told the BBC it needs to make £700m annual savings by 2017.
The BBC said: "Re tendering - we are currently working through our proposals for tendering and will announce our plans in due course."