Welcome to the official website of the American Clematis Society. For over a decade we have dedicated ourselves to promoting and understanding growing clematis in the United States. But we've only just begun!
Today we are proud to announce some amazing improvements to our site! As always visitors to clematis.org can enjoy cultural information, a guide to clematis nurseries, book reviews, photo galleries the clematis timeline, and helpful faqs and care information. But now our newest innovation is a Member’s Only section that not only rewards ACS members with access to our clematis A to Z database and selected clematis and gardening articles, but it has been expanded to include an online membership directory, member’s ratings of clematis, books and nurseries and much, much more. Plus, we're only just beginning. We have plans for even more great features for members and non-members alike!
But best of all, the ACS is now offering online memberships so you can join the society instantly! An ACS memberships has always been a great value, but with the new members-only website features and exclusive member discounts it's a must-have for all American clematis gardeners. So please join us, explore our site and enjoy the wonderful world of clematis.
Attention current members: You will soon be receiving an email with instructions on how to login to the members-only area of the web site. We don't have everyone's email address though, so if you didn't send us one when you signed up please contact us and we'll get you all set up.
This clematis is most often sold in this country as C. florida ‘Sieboldii’ or C. florida ‘Bicolor’
Other synonyms are C. florida var ‘Sieboldii’ C. ‘Sieboldi(i)’, C. bicolor; C. florida var bicolor and C. ‘Sieboldiana’.
My experience with Clematis ‘Sieboldii’ occurred back in 1994 when I first started my odyssey with clematis. I was completely smitten by the sheer beauty of this clematis. I planted it in a pot and to my delight it immediately flourished. Very promptly it shot up a stem which had 12 flowers and buds. It was a sight to behold. Well, that sight was short lived because it only lasted a few days when it just up and crashed completely.
Winter conditions can vary from zone to zone. Snow cover, early and late frosts and moisture in the soil can all have an affect on your clematis. Winterizing your clematis may be an option or even a necessity in colder locales where the ground freezes and can get down to 15° F or lower.