As well as the four RHS gardens, the following RHS Partner Gardens offer free entry to RHS members (main cardholder) in September. Please check the RHS Members' Handbook for details before you travel as free entry may not apply for the whole month. Enjoy your visit!
SCOTLAND
Abriachan Gardens
Branklyn Garden
Cambo Gardens (Wed only)
Castle Kennedy Gardens
Cawdor Castle Gardens
Drummond Gardens
Dundee University Botanic Garden
Dunrobin Castle Gardens
Floors Castle Gardens
Geilston Garden
Glenwhan Gardens
Harmony Garden
Hill of Tarvit Mansionhouse and Garden
Kellie Castle and Garden
Leith Hall Garden & Estate
Monteviot House
St Andrews Botanic Garden
Scone Palace
Threave Garden and Estate
ENGLAND
NORTH WEST
Arley Hall and Gardens
Bluebell Cottage Gardens
Dalemain Mansion and Historic Gardens
Holker Hall and Gardens
Ness Botanic Gardens
The Quinta Arboretum and Nature Reserve
Rode Hall Gardens (until 27 Sept)
Tatton Park Gardens
NORTH EAST, YORKSHIRE & THE HUMBER
The Alnwick Garden
Burton Agnes Gardens
Harewood House (from 3 Sept)
Millgate House
Newby Hall and Gardens
Normanby Hall Country Park
Raby Castle
Ripley Castle Gardens
Scampston Hall Walled Garden
Stillingfleet Lodge Garden and Nurseries (Wed only)
Thorp Perrow Arboretum & Woodland Garden
Wentworth Castle Gardens
EAST OF ENGLAND
Anglesey Abbey Gardens
East Bergholt Place Garden
Mannington Gardens
Sandringham
Woburn Abbey Gardens
Wyken Hall
SOUTH EAST & LONDON
Bedgebury
Blenheim (from 17 Sept)
Borde Hill Garden (weekends only)
Englefield House
Exbury Gardens
Furzey Gardens
Godinton House
Hever Castle and Gardens
Loseley Park
Nymans
Parham Park
Penshurst Place
Sheffield Park and Garden
Spinners Garden
Syon Park
Waddesdon Manor
SOUTH WEST
Batsford Arboretum
Cannington Walled Gardens
Chiffchaffs
Coleton Fishacre (Sat only)
Compton Acres
Cranborne Manor Garden (Wed only)
Docton Mill Gardens (Sat only)
East Lambrook Manor
The Garden House (Fri only)
Holbrook Garden (until 14 Sept)
Kilver Court
Kingston Maurward Gardens
Knoll Gardens
Mapperton Gardens
Marwood Hill Garden (Fri only)
Mill Dene Garden
Painswick Rococo Garden
Trewithen Gardens
Westonbirt Arboretum
Wilton House (until 16 September)
WEST & EAST MIDLANDS
Arley Arboretum and Gardens (Thur only)
Barnsdale Gardens
Bluebell Arboretum and Nursery
Cottesbrooke Hall (Thur pm only)
Coughton Court
Doddington Hall
The Dorothy Clive Garden
Felley Priory
Grimsthorpe Castle
Hergest Croft Gardens
Kelmarsh Hall
Melbourne Hall
Ragley Hall
Renishaw Hall
Ryton Gardens (the home of Garden Organic)
Stone House Cottage Gardens (until 8 Sept)
Wollerton Old Hall Garden
WALES
Bodnant Garden
Cae Hir
The Dingle Gardens and Nursery
Dyffryn Gardens and Arboretum
The Garden House (Thur only)
Penpergwm Lodge (Fri & Sat pm only)
Picton Castle and Gardens
Plas Brondanw Gardens
Portmeirion
NORTHERN IRELAND
Glenarm Castle
CHANNEL ISLANDS & OVERSEAS
La Seigneurie Gardens, Sark (first week of month only)
Sausmarez Manor Subtropical Woodland Garden, Guernsey (first week of month only)
Arboretum Kalmthout, Belgium
Fairchild Tropical Botanic Garden, USA
Isola Bella and Isola Madre, Italy
Parcs et Jardins of Loire Valley, France (selected gardens)