The Mammillaria Society



For the cultivation, conservation and study of the genus Mammillaria and allied genera.



Mammillarias have long been popular plants with cactus growers due to their interesting spines and showy flowers. It is the largest genus in the Cactus family with about 250 species and subspecies so there are plenty for the enthusiast to grow. Mammillarias are from Mexico with some species also found in southwest USA, the Caribbean and as far south as Colombia. Several species are endangered or critically endangered in the wild.


Mammillaria baumii in cultivation


Who are we?

The Mammillaria Society was founded in 1960 to promote and study this genus. Over the decades, the scope has been extended to include the allied genera Coryphantha, Escobaria, Neolloydia, Thelocactus and most recently Turbinicarpus. Today, the emphasis is also on the cultivation and conservation of these plants.


Mammillaria longiflora subsp. stampferi in habitat

(Image courtesy of Z. Janeba)


For our members

  • Quarterly illustrated Journal.
  • Quarterly Zoom presentations.
  • Annual seed list (GB members only).
  • Annual meeting with displays, plant sales and/or talks.
  • Biennial Show.
  • Members' Area on our website which includes access to Journals from the last 10 years.
  • A discount on digitised journals covering 60 years. Three DVDs are available with search contents.


Join here


Thelocactus hexaedrophorus


For everyone

The Mammillaria Society Facebook Page

Like and follow us on Facebook to see our regular posts and to share photos of your own plants on the Community section.


The Mammillaria Society Forum

Join other enthusiasts from the UK and around world to discuss mammillarias and the allied genera, ask for plants to be identified and browse the ‘A-Z of Mammillarias’.


Escobaria minima


News and Updates

22nd June 2021

All current members who have registered for the Members’ Area now have access to all the Society’s Journals published since 2011.


Registering for the Members’ Area

Mammillaria Society members are entitled to access the Members' Area of the website as part of their membership. If you are a member, please complete the registration form to create your account. Please note on registering you will not receive an activation email. We have removed this owing to issues with false registrations. Members of the Society who want access to the Members' Area are asked to register and then email the This email address is being protected from spambots. You need JavaScript enabled to view it. who will activate their account.


If you have any problems, please contact the This email address is being protected from spambots. You need JavaScript enabled to view it. for the site.






February 2021 journal is now uploaded in the Members' area, together with the Index for 2020.

Update History


10/11/2018 - Events page updated with our 2019 Annual Meeting at RHS Wisley

10/11/2018 - Members can now access all journals up to August 2018. Please contact Chris Davies

10/11/2018 - Membership for 2019 can now be purchased. Please use the link in the top right hand menu box.

24/05/2018 - New regulations are shortly to come into effect with regard to the protection of the data that the Society holds about its members. A formal letter is being sent with the May journal to all members, which is reproduced here

Links - containing Cactus Explorer link to Dr David Hunt's Huitzilopochtlia, and the recently revitalised Mammillarias.net.

Please Note: If you don't receive an activation email after registering, do check your spam folders. Note: Most pictures copyright of Chris Davies. Please contact the This email address is being protected from spambots. You need JavaScript enabled to view it.if you wish to use any of these.

Members Sign-Up

Members of the Mammillaria Society are invited to join the website to receive members-only services.

Click the Join button below and fill in your details. 

You must put your full name in the Name field to be registered as a member. The User-Name can be anything and it is this that is viewable by other members. Join the website