The festival, from 5-8 May, will host its largest-ever Show Garden area, with highlights including an homage to Capability Brown and an exploration of the Japanese notion of shakkei, or borrowing surrounding landscapes.
Ken Nottage, chief executive of Three Counties, said: "We are thrilled to once again be hosting a magnificent group of garden design talent including many an existing RHS Gold Medal winner. Both familiar favourites and newcomers alike form our 2016 line up and the designs are looking truly outstanding.
"This year the Show Gardens will dominate the Festival Green with the stunning Malvern Hills as a backdrop. I am told that in total they occupy the same space as three Olympic Swimming Pools. The RHS judging panel is going to have a tough job choosing between them. We cannot wait to see them transform the Showground later this spring."
Gardening amidst ruins, a homage to Capability Brown by Todd Longstaffe-Gowan Landscape DesignWyevale Garden Centres in partnership with Historic Royal Palaces,
The Garden of Romance by Villaggio Verde - a representation of parts of an old rustic Italian Cloister garden
A Japanese Reflection by Peter Dowle & Richard Jasper of Howle Hill Nursery, exploring the Japanese technique of ‘Shakkei’, meaning ‘borrowed landscape’
The Sunken Retreat by Graduate Gardeners, designed for a couple with mature children, to relax and entertain friends
The UCARE Garden by Emily Sharpe of Garden Stories, inspired by Broughton Castle
The Woodcutter Garden by Mark Walker, set in a bygone era when recycling and sustainability were the normn and built with the help of students from Weston College South West
Time is a Healer, a tranquil space for children and the bereaved, created by Martyn Wilson in support of The Primrose Hospice
Macmillan Legacy Garden by Mark Eveleigh in support of Macmillan Cancer Support, inspired by a "wonderful overgrown garden in Worcestershire" designed in 1911
Millefiori ‘A Garden of One Thousand Flowers’ by RHS Students of CW Horticultural Training, inspired by the ancient Millefiori glasswork found among the Staffordshire Hoards