• AGM plants

    AGM plants have been through a rigorous trial and assessment programme. They are:

    • Excellent for ordinary use in appropriate conditions
    • Available to buy
    • Of good constitution
    • Essentially stable in form & colour
    • Reasonably resistant to pests & diseases

All Plant Society events listed below do not have an entry fee (apart from normal garden admission), unless otherwise stated.

RHS Garden Wisley


8 & 9 September – People’s Dahlia Competition

Do you, or somebody you know, grow dahlias? Why not take part in the fun and show off your favourite garden bloom in the People’s Dahlia competition. Free to enter for show visitors with prizes for all winners and every entry will have the chance to win the special ‘Visitors’ Choice Award’.

Simply bring your dahlia stems along to the National Dahlia Society marquee at the RHS Wisley Flower Show before 12 noon on Saturday 8 or Sunday 9 September. We will provide everything you need to enter the competition. We look forward to seeing you there. For more information about entering the competition please contact vanessapenn@rhs.org.uk.


24 & 25 March – Bonsai Show (featuring pines)
Come and enjoy the fascinating competition classes featuring displays of bonsai pines along with advice and demonstrations on growing them from seed as well as care information aimed at beginners through to experienced growers. There will be plants and bonsai equipment for sale. The Wisley Plant Centre will also host a re-potting, styling and advice service. Visitors should bring their bonsai trees to The Plant Centre by 12 noon on either 24 or 25 March, from £5 per tree. (10am – 4pm).

7 April – Cyclamen Spring Show  
Competition classes featuring rare and interesting cyclamen, displays of spring-flowering cyclamen species, unusual cultivars and companion plants for sale and friendly experts on hand for help & advice. (10am – 4pm).

8 April – World of Alpines
Enjoy gorgeous displays of alpine plants and bulbs as well as photographic displays of wonderful alpines from around the world. Many unusual plants for sale and advice from the experts. (10am – 4pm).

28 April – British Iris Society Late Spring Show
Collections of spring flowering iris on display as well and a photographic exhibition, plants for sale and experts available to answer your questions. (11am – 4pm).

6 May – Mammillaria Society Show
Displays and collections of these fascinating plants with specialist talks and plant care demonstrations. This event is aimed at experts to novices and also features photographic displays and plant sales. (10am – 4pm).

12 May – National Alpine Show
This exciting national level show will feature a marquee packed with unusual alpine plants for sale, colourful displays and competition classes. Visitors can join guided tours of the Wisley alpine areas and collections. (10.30am – 4pm)

2 June – British Iris Society Summer Show
Gorgeous collections of summer flowering iris on display as well and a photographic exhibition, plants for sale and experts available to answer your questions. (11am – 4pm).

9 June – Peony Show
Celebrating all things peony. Fascinating talks about the history and development of peonies as well as caring for and use of different types in the garden. Visitors can take part in free propagation demonstrations and enjoy the colourful displays and unusual plants for sale. Guided tours of the peony trials beds will take place throughout the day. (10.45 – 4pm).

16 & 17 June – Plant Society Show
A fabulous day out for plant lovers and gardeners of all levels featuring over 20 different Plant Societies with all the garden favourites such as delphiniums, clematis, sweet peas, iris & dahlias as well as alpines, fruit & vegetables, hostas, carnivorous, bonsai & cactus.

Visitors to this annual Plant Society show can enjoy lovely displays of colourful and unusual plants, chat to friendly experts for help and advice, take part in free propagation, pruning and plant care demonstrations and buy gorgeous and unusual plants and seeds. You can also find out what to cook with your garden produce throughout the year. (Sat 9am – 5.30pm, Sun 9am – 5pm).

11 & 12 August – British Pteridological Society Show
Displays of unusual tender and garden ferns with an interesting range of ferns for sale. Take part in free propagation demonstrations, tours of the Wisley fern plantings and meet our friendly experts for a chat and advice on the planting, care and use of ferns in all parts of the garden. (10.15am – 4.30pm).

**CANCELLED - 14 August – A Day With Hibiscus - CANCELLED**
An opportunity to learn all about hibiscus and how to grow and use them around the garden. Enjoy displays of interesting specimens and browse plants sales and a photographic exhibition. Tours of the Wisley hibiscus trials will take place throughout the day and friendly experts will be on hand. (10.15am – 4pm).

18 & 19 August – Carnivorous Plant Society
Fascinating displays of carnivorous plants from around the world. Talks on the planting, care and use of these plants in the garden. Unusual plants and books for sale. (10.15am – 4.30pm).

21 October – Conifer Society Show
Displays and talks about conifer care and use.  Find out about conifers for every size and aspect of garden as wells as a show of cones and photographs. (10am – 4pm).


RHS Garden Harlow Carr

 5 & 6 May – Spring Plant Weekend
This hugely popular event - which includes the RHS-judged Daffodil, Tulip and Rhododendron Shows - will provide inspiration for your garden at home as well as a wealth of specialist advice from growers. The weekend also sees the launch of the Harlow Carr Spring Woodland Collection in the Plant Centre.
6 May – Spring Plant Fair
Get inspiration, talk to the experts and browse and buy a range of beautiful spring plants from specialist Plant Heritage nurseries, who celebrate their 40th anniversary this year.
9 & 10 June – All About Bonsai
With beautiful displays aplenty, the Bonsai Group will be at RHS Garden Harlow Carr to offer first-hand advice, expertise and demonstrations on these special miniature trees from 10am – 4pm. Visitors are invited to bring their own trees along for advice.

14 & 15 July – Sweet Pea Weekend
Enjoy the heavenly scent and breath-taking sight of hundreds of sweet pea blooms as the top UK growers travel to Harrogate for a weekend-long celebration. The prestigious National Sweet Pea Show will take place throughout the weekend, with 70 classes being judged on Saturday morning and an awards presentation at 2pm.
Visitors can join in tours of Harlow Carr’s own sweet pea blooms, learn more about the different varieties and hear expert advice on how to grow your own at home. Bunches of surplus blooms and seeds will also be available to buy, allowing visitors to take home a piece of the show. 11am – 4pm.

4 & 5 August – All About Orchids
Join Harrogate Orchid Society and experience the beauty and glamour of these magnificent plants with striking orchid displays, demonstrations and tips on growing at home from 10am – 4pm. 

11 & 12 Aug – Carnivorous Plant Weekend
Discover all there is to know about these unusual plants with a weekend of displays and advice from the carnivorous plant experts from 11am – 4 pm. Enjoy talks and demonstrations, get your questions answered, learn how to repot and split plants and take free seeds home with you.

15 & 16 September – Cyclamen Society Weekend
This new event - which includes the RHS-judged Cyclamen Show - will provide inspiration for your autumn/winter garden at home. There will be a wealth of advice from specialist growers, plus demonstrations, talks, displays and beautiful specimens to buy.

11 summer and autumn flowering species are expected to feature in the competitive show on Saturday and the non-competitive display on Sunday staged by growers from all over the country. A programme of illustrated talks and practical demonstrations on both days will have some subjects aimed at the novice and some aimed at the cyclamen expert. Come and learn about the Society’s field studies and see pictures of plants growing in the wild.
There will also be an exhibition of selected watercolours by Christabel King and Pandora Sellars that were specially commissioned for the Society’s book Genus Cyclamen: Science, Cultivation, Art and Culture, and a display of antique prints of cyclamen dating from the 16th, 17th and 18th centuries. Plant sale tables on both days will have sought-after cyclamen species and cultivars for both the gardener and serious collector. 
13 & 14 October – Alpine Weekend
Now in its fourth year, the Alpine Weekend will showcase the best variety of these hardy plants in association with the Alpine Garden Society. This is a perfect opportunity to pick up interesting varieties and get advice from a host of UK alpine plant growers.


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