Hello
When we went to gardeners world live last year Carol Klein stopped and chatted to my disabled mum she was fantastic and very friendly and chatty as well as Monty don and also last years Chelsea Alan titchmarch and Phillip schofield so chatted to my mum so we have seen a few celeb's at a few shows also at gardeners world live we saw Michael Parkinson, Michael hesletine, Matt james, Dermot gavin & Christine walkden.
Can't wait to see who's at gardeners world live this year, As camboure7 said they are used to it you only have to ask and most will oblige
Cheers
Brogusblue