The Chelsea Flower Show is held in the last week in May, organised by RHS Royal Horticultural Society. The showground location is the site of the Royal Chelsea Hospital Chelsea. The nearest underground station is Sloane Square. It is well sign-posted but you can just follow the flow of the crowd to find the entrance. Gardenvisit.com publishes reviews of garden designs at the Chelsea Flower Shows.
Chelsea Flower Show RHS, Royal Hospital Chelsea, Chelsea, London, Greater London, England, SW3 4SR
There is free entry to the Royal Hospital Chelsea Grounds EXCEPT during the week of the Chelsea Flower Show (last week in May) and when occasional other events are held.