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Plant Society events

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Plant Society events at RHS Garden Wisley

RHS Gardens host a wide range of specialist events focusing on particular plant groups. 

Iris reticulataOur next Plant Society event will be the British Iris Society Late Spring Show on 26 April.

Find out about competing in RHS competitions

Horticultural shows

RHS Horticultural shows are open to all - check our list of 2014 shows, from ornamental plants to fruit and veg (20kB pdf)

Please click here for specialist show schedules and forms. Contact the Horticultural Competitions Manager, email:, tel: 020 7821 3142 for more information.

2014 Plant Society events

British Iris Society Late Spring Show - 26 April

Iris close-upIris show with exquisite plant displays and experts available to answer your questions. More about The British Iris Society
11am (following judging) -4.30pm, Hillside Event Centre

RHS Late Daffodil and Tulip Competitions - 29 - 30 April

Tulipa RococoThe competitions will fill The Glasshouse Gallery with vibrant blooms.
Tue 12 – 5pm, Wed 10am – 5pm


The Pelargonium & Geranium Society - 17 - 18 May

Pelargonium close-upThe Pelargonium & Geranium Society will be in the Glasshouse Gallery during the Chelsea Plant Exhibit display to answer your pelargonium and geranium questions, tell you about the work of the Society and give you a free plant if you become a member on the day.

More about the Pelargonium and Geranium Society

Viola & Pansy Society Centenary Celebrations
31 May - 1 June

Join us for a celebration of the centenary of the Viola and Pansy Society and an appreciation of this plant group. Featuring plant displays, plant sales, and your chance to 'ask the experts'.
Glasshouse Gallery, normal Glasshouse Gallery opening hours

More about the Viola and Pansy Society

The British Iris Society Summer Show - 31 May - 1 June

Visit the iris show for plant and photographic displays, plant sales and experts available to answer your questions.
Sat 11am (following judging) - 4.30pm, Sun 10am-4pm, Hillside Event Centre

Border Allium Study Day - 4 June

Alliums with grassesA study day focusing on this popular plant group, featuring plants on display and for sale, photographs and information. Plus expert talks, the chance to see the trials field assessment and a Q&A session. Speakers include:

  • Christine Skelmersdale, Broadleigh Gardens, Chair of Allium Forum & RHS Bulb Committee
  • Alan Street, Avon Bulbs: Border alliums: An introduction and how to grow
  • Fergus Garrett, Great Dixter: Border alliums in the garden
    10am-4pm, Hillside Event Centre

The Peony Society - 14 June

Peony RenkakuVisit for an exquisite flower show and expert advice. More about The Peony Society
1.30-4pm, Hillside Event Centre

Mammillaria Society Show - 15 June

Talks about Mammillaria to suit experts and novices, plus informal discussions and plant and photo displays. More about The Mammillaria Society
10am-3pm, Hillside Event Centre

Sweet Pea Open Day - 20 June

Enjoy cut flower displays from nurseries, seed companies and the National Collection Holder. Find out all you need to know about growing these fragrant favourites, and ask the experts your questions.

More about The National Sweet Pea Society
10am-4pm, Hillside Event Centre

The Delphinium Society Show - 21 - 22 June

Delphiniums on trial The National Show of the Delphinium Society - visit the beautiful displays, and ask the experts your questions. More about The Delphinium Society
12-4pm Sat, 10am-4pm Sun, Hillside Event Centre

The Herb Society - 30 August

A herb market displaying and selling herbs and various herb related products. More about The Herb Society
2-4pm, Hillside Event Centre

National Dahlia Society Show - 2 - 7 September

DahliasThe National Dahlia Society will once again be holding their annual show as part of the Wisley Flower Show. The show opens to the public after judging (by noon, 2 Sept) and will be in place until 5 Sept. Additional dahlia displays and information will then be on display for the weekend of the show.

Bonsai Weekend with Surrey Heath Bonsai Society
20 -21 September

Surrey Heath Bonsai Society presents a mix of plant sales, display and care information for the beginner through to the expert. More about Surrey Heath Bonsai Society
10am-4pm, Hillside Event Centre

Cyclamen Autumn Show - 11 October

Cyclamen coumThe Cyclamen Society Autumn show offers exhibits of autumn flowering cyclamen and companion bulbous plants. More about The Cyclamen Society
10am-4pm, Hillside Event Centre

An afternoon with Delphiniums - 15 November

The Delphinium Society offer practical advice on these much loved plants for beginners and experts alike. More about The Delphinium Society
1.30-4pm, Hillside Event Centre

The Lily Group Bulb Auction - 16 November

The Lily Group opens its bulb auction to Wisley visitors. Plus, lily lovers can ask for expert advice. More about the RHS Lily Group
12.30 - 4pm, Hillside Event Centre

Useful links

Useful links

Our Plant Selector helps you find perfect plants to suit your preferences and your garden. Search Plant Selector now. 

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Wild About Gardens

Wild About Gardens

Want to know more about how you can make your garden a great place for wildlife.  Wild About Gardens has a wealth of information.