Llanerchaeron, Ceredigion
Erddig, Wrexham
Sissinghurst Castle Garden, Kent
Berrington Hall, Herefordshire
Lanhydrock, Cornwall
Mount Stewart, County Down
Hill Top, Cumbria
Tyntesfield, North Somerset
Cragside, Northumberland
Killerton, Devon
Wallington, Northumberland
Ormesby Hall, Redcar and Cleveland
Calke Abbey, Derbyshire
Scotney Castle, Kent
Dunham Massey, Cheshire
Treasurer's House, North Yorkshire
A La Ronde, Devon
Ham House, Surrey
Castle Drogo, Devon
Snowshill Manor and Garden, Gloucestershire