Among the small screen gardening stars set to appear are Monty Don, Diarmuid Gavin, Cleve West and James Alexander-Sinclair, while the food show boasts visits from Paul Hollywood, Mary Berry, James Martin, John Torode and Gregg Wallace.
The smell of success: 21 years of Gardeners' World Live
Gardeners' World Live, which is celebrating its 21st anniversary, has a number of new features for 2013.
From Plot to Plate is a stage hosting demonstrations on the best ways to grow fruit and vegetables, with top chefs then showing how to turn the harvest into fine dining.
In the Potting Bench section professionals will give advice on growing and caring for plants, while the Flower Box stage will feature demonstrations and floristry displays.
In the main Gardener's World Theatre James Alexander-Sinclair will introduce the likes of Monty Don, Carol Klein, David Domoney and Toby Buckland who will offer hints and tips on what to do in the garden this summer.
The Royal Horticultural Society Floral Marquee and Plant Village will have hundreds of specialist nurseries and exhibits and the show gardens, conceived by top designers, will inspire visitors to transform their own outdoor space.
For the Grow Your Own brigade Edible Patches will provide plenty of ideas as students and allotment growers show how much fruit and veg they can cram into a 3 metre x 3 metre plot. Diarmuid Gavin says: "I haven't been to BBC Gardeners' World Live in years and I'm so excited to be returning for its 21st birthday.''
Tasty: BBC Good Food Show Summer
The highlights of the BBC Good Food Show Summer are certain to be special on-stage editions of top television cooking shows.
The Great British Bake Off, Saturday Kitchen and MasterChef will come to life in the new 1,400-seater Supertheatre.
The Great British Bake Off will feature Paul Hollywood, Mary Berry and 2012 winner John Whaite. To complement the show there will be a Great British Bake Off Village, dedicated to all things baking.
Saturday Kitchen will be hosted by James Martin and will include Food Heaven and Hell, recipe demonstrations, wine experts Peter Richards and Susy Atkins and celebrity guests.
Lisa Faulkner and Andi Peters will host MasterChef and introduce previous winners and contestants.
John Torode and Gregg Wallace will oversee cook-offs and demonstrate some of their own cooking.
James Martin says: "The addition of an enclosed Supertheatre to the Summer Show is really exciting. I come to every single BBC Good Food Show and I enjoy them more and more each time.''