Morley moved from John Lewis to become director of shows, retail and gardens in January 2014 after the RHS made Stephen Bennett redundant. Bennett has since taken over running the horticultural content of Gardeners World Live.
Events specialist Nick Mattingley has recently joined as the RHS as shows director.
Meanwhile, the RHS is believed to be in talks with Chatsworth in Derbyshire about a possible show after pulling out of BBC Gardeners World Live.
At Hampton Court (June 30-July 5) Perennial and Yardley are exhibiting a 'women's influence in gardening' garden inspired by Jane Loudon's Gardening for Ladies 1840 book with about a dozen influential gardening women such as Rachel de Thame, Rosy Hardy, Carol Paris and Jo Thompson.
Jean Wardrop and Alex Stevenson are the designers.
RHS Greening Grey Britain show feature designed by Nigel Dunnett will launch on 29 June, with possibly Jo Brand and Bill Bailey on the exhibit. The campaign is seeking to transform 6,000 spaces in the UK by 2017. Show visitors can pledge support using iphones on the stand.
The exhibit is the size of three show gardens and Dunnett said the Greening Grey Britiain campaign was a "huge opportunity for horticulture...to create new jobs and businesses." He said the message to local authorities and developers, as well as businesses such as McDonald's and Tesco was to transform car parks and other concrete spaces as well as bus stops and cycle shelters into green areas. Dunnett said wildflower turf was not always successful in these schemes so he was adding perennials to it to give it a longer life.
Gardeners Question Time is broadcasting from the garden on 30 June.
Also at Hampton Court, Raymond Blanc will be cooking at the Henri le Worm garden, designed by his son Oli Blanc and Chris Collins.