Monty Don and Joe Swift take a look at the smaller gardens of the Chelsea Flower Show. Carol Klein reveals the winner of the Platinum Jubilee Award, the biggest award in the Great Pavilion. Nick Bailey showcases the new plants launched at Chelsea that we will all want to buy for our gardens, and in a special look back into the archives, Rachel de Thame reveals how gardening tastes and trends have changed at Chelsea since the beginning of the Queen’s reign in 1952.