The ‘Unexpected Gardener’ also won best urban garden at the show in May.
The garden has been rebuilt and people can see it at open days on July 18 and 25 between 2pm and 4.30pm at Thrive’s Trunkwell Garden Project in Beech Hill near Reading RG7 2AT.
The Berkshire garden features a 1.2ha Victorian walled garden which is planted and maintained by disabled gardeners.
Thrive therapists will offer guided tours of the gardens.
There will be a plant swap and with the money raised, as part of Thrive's Plant A Difference campaign, Thrive will send a plant box worth £35 to a disabled person.
Plants will be on sale as well as teas and cakes. Entrance is £3.50 for adults and £1 for children.
Thrive chief executive Nicci Carruthers said: "Both events offer a wonderful afternoon out and I hope as many people as possible will take up the chance to see our Chelsea garden in all its glory here at Thrive."