Queen Elizabeth to attend Chelsea Flower Show, official royal wedding gifts, who is walking Meghan down the aisle, relatives arrive in London, Piers Morgan blasts Samantha Markle and Norway's Royal Couple visit a Viking Museum. Chelsea Flower Show Queen Elizabeth II to attend the Chelsea Flower Show on Monday, 21 May 2018. Visit https://www.rhs.org.uk/shows-events/rhs-chelsea-flower-show to find…