Talks on allotment gardening, living wall building, tree care and plant propagation are on offer, as well as displays from Royal Parks partners and The Royal Parks Guild, including one illustrating the role of the Royal Parks during World War 1.
The show will open daily from 12pm to 6pm, during the midweek of British Summer Time Hyde Park (BST Hyde Park), presented by Barclaycard.
On July 5, budding horticulturalists, photographers, jam makers and bakers will have their entries judged, followed by two further days of talks and demonstrations.
On Wednesday and Thursday The Royal Parks will be hosting a 'Royal Parks Question Time'. Panel members will be on hand to answer questions on tree management, wildlife and ecology, policing the parks and horticulture.
As the show takes place during the midweek of BST Hyde Park, visitors will also be able to enjoy other free activities across site at 'Open House' which runs from July 4 to 7, including open air cinema, ping pong and badminton, a street food market and after school sports.