The Shamrock Collection, France
http://www.hortensias-hydrangea.com is the website for The Shamrock Collection, the largest collection of hydrangeas in the world. It has been created by Corinne and Robert Mallet in Varengeville-sur-Mer, near Dieppe, Upper Normandy, France. The species, sub-species, forma and cultivars of hydrangeas growing in this 5-acre garden amount to almost 2,000 taxon. The Shamrock Association (Friends of the collection) has over 240 members, of which one-third are abroad. Corinne Mallet has made many expeditionary collecting visits to Europe, the U.S.A. and Japan, is author of several hydrangea books, and is an expert in the cultivation, propagation and taxonomy of hydrangeas.
Barry Roberts (Heritage Hydrangeas, right) with Robert Mallet (Shamrock Collection, left). "Where's the label?
PlantenTuin Esveld, Holland
http://www.esveld.nl is possibly the second largest hydrangea collection in the world with approximately 400 taxon. PlantenTuin Esveld is a combination of a large nursery and a display garden on a 1-hectare site in Boskoop, Holland.
The owners are members of the van Gelderen family. C.J. van Gelderen and D. M. van Gelderen are the authors of the ’Encyclopedia of Hydrangeas’.
Mimurotoji Temple, JapanMimurotoji is a temple in the northern hills of Uji-city, founded about 1200 years ago. It is also known as the ‘flower temple’, as its wide temple grounds offer large gardens of many varieties of seasonal flowers including cherry blossoms, azaleas, hydrangeas, lotuses and acers in autumn. https://www.tripadvisor.ca/Attraction_Review-g946495-d1386218-Reviews-Mimurotoji_Temple-Uji_Kyoto_Prefecture_Kinki.html is a TripAdvisor website but has the best photos I can find of this excellent hydrangea garden in Japan. The Mimurotoji Temple, Uji-city, Japan, claims to have 10,000 hydrangea plants of 50 different types.
Mimurotoji Temple, Uji-city, Kyoto Prefecture, Japan
Norfolk Botanical Garden, USA
http://norfolkbotanicalgarden.org/ is the website of the Norfolk Botanical Garden, Virginia, USA. This 155-acre botanical garden has the largest collection of hydrangeas in North America comprising 200 cultivars from 20 species. Designated an official North American Collection by the North American Plant Collection Consortium (NAPCC).
The George Tindale Memorial Gardens, Australia
https://parkweb.vic.gov.au/explore/parks/george-tindale-memorial-gardens/ is the website of The George Tindale Memorial Gardens, one of the most significant hydrangea collections in Australia, located in the Dandenong Ranges, just outside Melbourne. Records of this property go back to 1893 when Captain J. Pallant purchased the 10-acre property, but it remained largely undeveloped until it was purchased by George and Ruth Tindale. Together, through their hard work, it was turned into a magnificent garden with significant collections of hydrangeas, rhododendrons and camellias. The garden is now managed by Parks Victoria, a statutory authority. The hydrangea collection is listed with the Australian national plant registration body, ‘Plant Trust’, as a significant hydrangea collection and comprises over 13 species and 132 varieties and cultivars.
Heritage Museums and Gardens, Cape Cod, Massachusetts, USA.
Heritage Museums and Gardens, USA
https://heritagemuseumsandgardens.org/gardens/northamericanhydrangeagarden/ Heritage Museums and Gardens is fast becoming a major hydrangea garden in collaboration with the Cape Cod Hydrangea Society. Begun in 2010, by 2017 the collection has grown to 8 species and 164 cultivars. There are ambitious plans for new hybrid varieties of hydrangeas to be planted, grown and studied by professional experts from across the USA. Les Lutz is Director of Horticulture and Facilities management, Mal Condon is Curator of the hydrangea collection.
Hydrangea Derby, UK
http://hydrangeaderby.co.uk/ is the website for Britain’s largest collection of hydrangeas comprising 490 taxa from 14 species, grown on a half-hectare site in the East Midlands. Hydrangea Derby is now holder of the UK’s National Collection of Hydrangea paniculata species with 71 cultivars.
The Hydrangea Derby plant collection is located in the gardens of Darley Abbey Park, in the village of Darley Abbey, just north of Derby, England.
Holehird Gardens, UK
http://www.holehirdgardens.org.uk is the website for an outstanding garden in the Lake District of England. Maintained by volunteers of the Lakeland Horticultural Society, this former national collection now focuses on those varieties more able to cope with conditions in a Cumbrian garden. The thriving Lakeland Collection of Hydrangeas now comprises more than 200 plants from 14 species.
Additional collections at Holehird Gardens are Astilbe, Daboecia, Meconopsis, Polysticum and autumn-flowering Gentians.
Woodleigh Nursery, New Zealand
Woodleigh Nursery is a 10-acre commercial mail-order nursery located in New Plymouth, near Mt. Taranaki, North Island, New Zealand. The nursery, owned and run by Janica and Quin Amoore, specialises in Hydrangeas and the propagation of native seedlings. Their catalogue, available at http://woodleigh.co.nz/", includes over 150 hydrangea varieties from across 16 species.
Bodnant Garden, WalesBodnant Garden is a National Trust property near Tal-y-Cafn, Conwy, Wales, overlooking the Conwy Valley towards the Carneddau mountains. Founded in 1874 and developed by five generations of one family, it was gifted to the National Trust in 1949. Wikipedia. The 80-acre garden comprises manicured lawns, flower-filled terraces, water gardens and Wales’ largest collection of champion trees. I regret I have been unable to locate any statistics of the Hydrangea species, varieties or cultivars grown at Bodnant, but it is an extensive collection.
http://www.nationaltrust.org.uk/bodnant-garden is the website.
Crug Farm Plants, Wales
Crug Farm Plants comprises a woodland garden, a walled garden and a sales area. Covering almost 20 acres, it is situated in a picturesque area on the North Wales coast. www.crug-farm.co.uk/ is the website. Since its transition to a nursery in 1991, it has become a Mecca for extraordinary plants. Initially originating from their own breeding programme, the emphasis has shifted to introducing new and wondrous plants from Sue and Bleddyn Wynn-Jones’ annual sorties to remote corners of the globe, including India, China, Korea, Taiwan, Japan, Philippines, Thailand, etc. Crug Farm Plants boasts at least 27 Hydrangea species in its catalogue with many more sub-species, forma, varieties and cultivars.
Bleddyn Wynn-Jones and Barry Roberts at Crug Farm Plants, 2018.
We would be delighted to receive information of other great hydrangea gardens around the world. Please send information, the names and locations of the gardens, website addresses or any other information we could use to feature truly excellent hydrangea gardens on our website. Send info by email to email@example.com. Thanks.