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.

To view a list of the past Plants of the Month, please click here

2021 Events


Thursday 16th December, TBC - 'Genus Mammillaria and its allies - in the field and in cultivation' by Zlatko Janeba

Zlatko has spent several years in the south-west of the USA and has travelled to Mexico several times. On his travels he has observed many mammillarias and many of their allies such as Coryphantha and Neobesseya. 

Zoom link and joining instruction to follow.


Wednesday 22nd September, 18.30 BST - 'Small Mammillarias in Habitat' by Daniel Beck

Daniel Beck from Germany will be presenting the third Zoom talk for 2021. This talk will focus mainly on the small mammillarias (many with large flowers) that Daniel has come across on his travels in Mexico. 

Zoom link: Opens at 18.15 BST for members to join


Meeting ID: 848 5844 3441
Passcode: 726319


Thursday 17th June, 19.30 BST - 'Mammillarias in my greenhouse and in Mexico' by Wolter ten Hoeve 

The second in the series of Zoom talks for 2021 will be given by Wolter ten Hoeve. Wolter has a large collection of Mammillaria species and has travelled in Mexico many times. 

Zoom link: Opens at 19.15 BST for members to join


Meeting ID: 872 4061 2902

Passcode: 236810





Who are its Members?

The Society has a world-wide membership. Members range from professional botanists to enthusiastic amateurs. All share a common love of the genus and a wish to increase their own knowledge and share this with fellow members.

What are the benefits to Members?

  • Four Journals each year
  • An annual seed offer, with the varied choice usually including data
  • Occasional study groups set up to examine particular aspects of the hobby
  • Books on Mammillaria and allied genera


Subscriptions for 2022 (Unchanged from 2021)
You can now join and renew safely and securely, using your credit card, through our association with PayPal, the world's leading on-line payments system. Alternatively you can download and print the 2022 Membership Application Form here.
UK Members using Paypal will be emailed a request for their current and past membership subscriptions to be considered as Gift Aid. The Society is in the process of applying for this. We would very much like all members to agree as it pushes further back the time when we have to consider again any increases in subscriptions. Do note that the only increases this year are to non UK membership, and these only to fully cover international postage costs.
Pricing is shown in British Pounds but you will be billed in your local currency. This means that Mammillaria Society membership is now available throughout the world.
PLEASE NOTE: Your Paypal receipt will have an old email address on it. If you need to follow up anything connected with your transaction, please contact This email address is being protected from spambots. You need JavaScript enabled to view it.
UK Subscription for 2022
UK Membership 2022 | 13 GBP
UK Joint Membership for 2022 (2 members living at the same address)
UK Joint Membership 2022 | 14 GBP

Europe Subscription for 2022

(Air mail, approx. 25 Euro)

Europe Membership 2022 | 20 GBP

Outside Europe including USA Subscription for 2022

(air mail, approx. $38)

Outside Europe including USA Membership 2022 | 24 GBP
Just click on the link to join us or renew your subscription. If you are renewing, don't forget to include your membership number.The subscription year runs from January and if you join part way through the year then all the previous Journals for that year will be sent to you.
Note: there are no additional shipping, handling or tax costs - all rates are fully inclusive.


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.

New Plant of the Month - Mammillaria baumii

November Journal is available for Members to download.

The 2014 Seedlist is also now in the Seed section, though this is for Members only to buy from.

Apologies if you have had performance issues recently. This is being addressed and  we hope we are past the worst.

We are seeking a new webmaster, to develop the website for the future. Please contact Chris Davies. 

Please NoteIf 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.

maycobensis th

July's Mammillaria of the Month:

Mammillaria maycobensis


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