Garden gnomes decorated by Cate Blanchett and Sir Brian May are set to make their debut at the Chelsea Flower Show . The Royal Horticultural Society (RHS) has lifted its long-standing ban on the quirky ornaments for only the second time in the event's history, allowing them to join the blooms. The unique gnomes, personalised by figures such as Alan Titchmarsh , Dame Mary Berry , Tom Allen, Dame Joanna Lumley , and Bill Bailey , will be available for the public to bid on. An online auction runs from Friday until Sunday 24 May. Proceeds from the auction will benefit the RHS’s Campaign For School Gardening. The initiative provides schoolchildren with access to gardening, fostering learning through plant cultivation, developing practical skills, building confidence, and enhancing their environmental understanding, the charity said.…