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40th Anniversary Year

Welcome to all Clematis Lovers

Christel Theurer 1942 - 2023

It is a pity to have to start the year with such sad news, but I have to report the death on 30th December 2023 of Christel Theurer of Germany. Her health had not been good for many years, but recently it had deteriorated more and she was also suffering from side effects of the various treatments she'd been having.

Christel joined the Society in 2008, some 16 years ago, and attended the majority of Society meetings during these years, latterly often accompanied by Christian, one of her sons. She was an exuberant and colourful character, always smiling and laughing. She was a very stylish person, fashionable, and often, though not always, a great wearer of bright colours.

The Society sends it's deepest sympathy to Daniel, Felix, Christian and families.

I'm grateful to Joe Henderson for providing both wonderful photos of Christel, shown below.
Christel Theurer at Wemyss Castle Gardens - 2018©joe henderson

Christel Theurer at Wemyss Castle Gardens - 2018

Christel Theurer in Portland, Oregon, USA - 2019©joe henderson

Christel Theurer in Portland, Oregon, USA - 2019


A reminder that our next Webinar is in a few days time, on Saturday, February 3rd at 1:00 p.m. Eastern Time, which is 18:00 in the UK and 19:00 in mainland Europe. The topic is "The Legacy of Clematis integrifolia" by Linda Beutler and Maurice Horn. This webinar is open to members and to the public.

The webinar will use Zoom and the link is:-

If you have any questions about this webinar, you may contact our secretary Fiona Woolfenden, at I.Cl.S. Secretary.

Celebrating 40 Years of the International Clematis Society

The International Clematis Society, founded in 1984 by Raymond Evison, will be 40 years old this year. One of the ways we will celebrate this is with a meeting in Loire, France in June 2024. This will be the first meeting of the Society in France and we're very excited about the possibilities. The meeting will be held from 7th to 15th June 2024 in the Loire region of France. Attendees will need to make their own travel arrangements to the starting location in Tours. Note, there is a good train service here from Paris.

The brochure and booking details, together with confirmed costs, are taking a little longer to finalize than we'd hoped for and unfortunately are not yet completed. However they are undergoing final checks and we expect them to be available very soon. At this point, all members will be emailed with a link to the elctronic brochure and other details. So please be patient, the wait will be worthwhile, I'm sure.

The meeting is open to all members of the Society, but space is limited. Places will be allocated on a first come, first served basis.

Initial details were presented to attendees of the webinar held on Wednesday 28th November. This webinar was recorded and is available on our 40th Anniversary Meeting page. As well as the webinar recording, I have retained the original text giving our initial ideas on the itinerary, please visit Future Events. See also the Fall Newsletter 2023.

I also hope to celebrate this anniversary with a number of special articles in the next journal, looking back on some of our achievements, delving into some of the older journals for hidden treasurers, and getting members old and new to talk about their memories of the Society and looking into the future.

New Year Honours - CBE for Raymond Evison

In the 2000 Birthday Honours List, Queen Elizabeth II appointed Raymond Evison, founder of this Society, Officer of the Order of the British Empire (OBE), for services to horticulture on Guernsey.

The International Clematis Society is proud to announce that in the 2024 New Years Honours List, King Charles III appointed Raymond Evison Commander of the Order of the British Empire (CBE), in recognition of his achievements and services to the horticultural industry, alongside his passion and devotion in promoting the Island of Guernsey. The investiture should take place, probably at Buckingham Palace, later this year. Raymond was quoted as saying "To become a Commander of the Order of the British Empire (CBE) is a tremendous honour for our family, The Guernsey Clematis Team, for Horticulture, for Guernsey and for myself".

The Society sends our congratulations to Raymond.

Membership Renewal and Fee Increase

Membership of the Society runs from 1st January to 31st December each year, which means if you haven't yet renewed for 2024, now is the time to do so. Please do this as soon as possible as handling reminders takes a lot of time and effort.

Please also note that the Society has found it necessary to increase the rates by £3 on the UK Pound Sterling rate, an increase of slightly less than 10%. This is the first increase made since August 2017. Increases in other currencies reflects current exchange rates. You can see all rates and find links to our PayPal buttons at How to Join or Renew your Membership. Please also note, the temporary problem with the PayPal buttons has been fully corrected and they are now working as they should.

Clematis International 2024

I have already started work on Clematis International 2024 but am very concerned over a lack of articles. As we move through winter, perhaps you have a little more free time to think about something you could write for the next journal. It could be scientific, but on the other hand it could be your observations of your garden, what clematis you grow and how you grow them. Please let me know of your ideas. And do not worry if you believe your English is not quite up to scratch, that's one of my jobs as editor.

Members Seed Exchange

Our Seed Exchange List for 2023-24 is now closed for orders. We had a great selection of seeds this year - thank you very much to everyone who donated to the Exchange.

The task of sorting and distributing seeds has started. If you have ordered seeds, please be patient. The orders have to be sorted and seeds allocated. Then seeds are distributed to the country distribution points for onwards sending to members.

The seed list, Seeds 2023-24, remains on this website for reference purposes only.

The International Clematis Register and Checklist 2002 - Seventh Supplement

This latest supplement to the International Clematis Register is now available online. In line with the continued expansion of internet usage and with an eye to reducing paper usage and cost, it is suggested that you download it for free from the RHS website, just visit

International Clematis Society on Social Media

For some time the Society has had a presence on the social media platform, Facebook. I'm pleased to announce that now you can also find us on Instagram. On both of these you will find updates on what's happening in our garden in the UK as well as clematis news from other members. All you need do is click on either of the two logos below.

Find us on Facebook Find us on Instagram

The International Clematis Registrar, and the International Clematis Register and Checklist

The International Clematis Register and Checklist 2002, which went out of print some time ago, is available in electronic format. One benefit of this is that it allows text searching.

Details for The Register and all seven supplements can be found via the RHS website at However because of the file size of the Register itself, approximately 25 Mbytes, it cannot be downloaded from the RHS web site in the same way that the supplements can. To help the RHS and reduce their workload, Society members wanting a copy should email Ken Woolfenden, I.Cl.S. Webperson and Editor, at icls editor, who will return a download link.

The Society fully endorses the work of the International Clematis Registrar, The International Clematis Register and Checklist 2002 and the six supplements published so far. We recommend all clematis lovers use the standards they describe.

There is, of course, still a need for all Clematis breeders, both professionals and amateurs, to register your Clematis cultivars with the Registrar to continue to keep the International Clematis Register up to date. If you want a copy of the form, information about it is available at the Clematis Registration Form.

Recommended Clematis

The Society's Clematis for Beginners List is now Recommended Clematis, reflecting the wider usefulness of this set of clematis cultivars for all clematis growers around the world. It was reviewed and revised during our meeting in Devon and Cornwall in 2015. It is available online and also as a downloadable version from our Recommended Clematis section, in Dutch, English, French, German and Swedish

All the clematis on the list are easy to grow, easy to look after and resistant to common pests and diseases, and whilst there are no absolute guarantees where gardening is concerned, most people should have success with all of these.

Because space is not so much of a problem, the online version of the list now contains more information about each clematis featured within it, along with a simple menu bar to let you see each group and then pick the clematis you're interested in. The downloadable version (no illustrations as yet, I'm afraid) is very suitable for taking with you when you visit your local nursery or garden centre!

Journal Index of Clematis References

A reminder of a facility which I'm sure many of you will find most useful - an index of references to all the clematis mentioned in the journals of the Society, both in the text and as pictures. I am indebted to Ton Hannink for all the work he has put into producing the first issue of this index. The index currently covers the years 2005 - 2014 inclusive. Further years will be added as they are completed. Whilst it is quite a large document, some 29 pages, it is not a particularly large file to download should you wish, just under 220 Kbytes. You can find it by visiting the Previous Journals page.

RHS Clematis Catalogue Collection

The Royal Horticultural Society of Great Britain holds a collection of Nursery Catalogues and have been keen to add to it. A number of years ago the Society was asked to canvas our members for any Clematis Nursery catalogues which they had and would donate to the collection, which we did. Quite a few have been donated so far.

Whilst he was the International Clematis Registrar, Duncan Donald extracted a list of catalogues from Clematis Specialists which are currently within the collection and a list of catalogues which feature clematis, but under such headings as "climbing plants" or "climbers". You can find them at RHS Clematis Catalogue Collection and RHS Climbers and Climbing Plant Catalogue Collection. Links to both these files can also be found via the "Information, Answers and Questions" link on the left of this page.

The Society has asked where further donated catalogues should be sent. As soon as we have this information it will be publish here.

Nursery Membership

The Society offers a second category of membership - Nursery Membership. So far we have been very pleased with the support that many nurseries have given by renewing as Nursery Members. We thank them all.

These Nursery Members can be found on a special Nursery Members page on this website.

The Society hopes you will recognize that, as members of this Society, these Nursery Members have a particular interest, knowledge and love of clematis and can be expected to provide a range and quality of plants, and informed knowledge, not usually available in non-specialist outlets. Please check this page regularly for additions.

Whilst it is now too late for your nursery details to be included in Clematis International 2011, any further Nursery Memberships will be published on this website as they are received and also in the List of Members when it is reissued at the beginning of next year.

Trialing New Clematis

An example of a Clematis Trial contract, mentioned in the article in Clematis International 2008 about trialing new clematis by well-known clematis breeder, Wim Snoeijer, can be downloaded by visiting the A.O.B. (Any Other Business) page accessible from our Information, Answers and Questions section.

How do you pronounce .....

If you're uncertain how to pronounce some clematis names, why not visit Clematis on the Web. A number of cultivar entries now have a helpful "how to say" feature.

A classic example is probably C. 'Mrs Cholmondeley'. How do you pronounce this? Just take a look at Clematis on the Web - Mrs Cholmondeley, click on the loudspeaker icon and find out for yourself.

This is an extreme example but I'm sure there are many others that people may be unsure of, but don't like to ask. Now you can find out in the privacy of your own home.

General Data Protection Regulation - GDPR

This Regulation applies to all organizations, large and small, that store personal data of EU and UK citizens electronically.

A draft Privacy Policy was drawn up and discussed at a previous Council Meeting. We are still working on modifications and amendments. Once completed and the resulting document is agreed by your Council, it will be released to all members and posted in this website.

The Society is committed to complying with this regulation. Should any member have any questions or concerns regarding it, please contact our designated Data Controller, Ken Woolfenden.

And finally ....

The ethos of the Internet is to be an open forum for ideas, views and opinions. Sites should encourage visitors to link to other sites, it's a two-way process. So if you've got a few moments, why not look at our Clematis Links page and follow up one or two. You may find a lot more than you were expecting!

For any non-members visiting this site, have you considered joining the Society? With plans for some very interesting meetings over the next few years there couldn't be a better time. For details, visit our How to Join page.

Last message - for any new visitors. If you cannot see a set of menu buttons down the left hand side of your screen your link to this site may be incorrect. Please re-visit by calling

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