In 2008, the BBC is believed to have wanted to broadcast footage of the pavilion before the Daily Mail had published stories on it, leading to the newspaper banning the BBC from the pavilion and to no coverage on TV at all.
Show manager Mandy Almond said: "It's a shame they won't be part of next year's show. (But) this will enable us to ring the changes to the show layout, features and sponsorship opportunities."
Meanwhile, RHS show manager Bob Sweet said the economic slowdown has not hit sponsorship for next year's Chelsea but may do so for 2010. He said a "good crop of big names" will show, including Diarmuid Gavin and possibly Christopher Bradley-Hole, who withdrew at the last minute this year. But Tom Stuart Smith, Andy Sturgeon and Dan Pearson will not exhibit.
RHS London Flower Shows are to be revamped, with a design show in February and environmental show in April.
For more show news, visit www.HorticultureWeek.co.uk.