The new deal will continue to give BBC audiences access to the RHS Chelsea Flower Show, across TV, radio, online and red button. RHS Gardens, with seasonal advice and ideas from RHS experts, will also continue to be showcased on BBC Two's Gardeners’ World.
RHS director general Sue Biggs said: "Millions of gardening fans have enjoyed the BBC’s coverage of our Shows and Gardens and our work in science, community gardening and schools for the last 12 years and we are delighted to be continuing this successful partnership.
"The BBC’s coverage of RHS Chelsea Flower Show attracts some of the biggest audiences for gardening programmes on TV today and high levels of audience appreciation. It’s a huge highlight in the gardening year.
"BBC programmes like Gardeners’ World and coverage of RHS Shows have a direct impact on inspiring people to get outside growing plants. Reaching out to the widest possible audience to share the best in gardening is at the heart of what the RHS does, so we couldn’t be happier about extending this partnership."
BBC executive producer for RHS shows Simon Shaw said: "We are delighted to be working again with the RHS for continued coverage on BBC Television. Our audiences see Chelsea, Hampton Court and Tatton Park as highlights in their TV gardening year and we look forward to serving up more treats from these prestigious events."