Welcome to the Passiflora Society International website!

We currently have 2 tiers of membership, and one of them is FREE!  Click below to register for your membership.

Join the PSI now, and receive the many benefits associated with membership!


February 23rd, 2016

The 72 page New Cultivar Edition is available for purchase now in the SHOP.  It has also been sent to these prominent libraries.:

  • New York Botanical Garden – LuEsther T. Mertz Library
  • Strybing – San Francisco Botanical Garden – Helen C Russell Library
  • Missouri Botanical Garden – Peter H. Raven Library
  • Kew Gardens – Herbarium, Library and Archives RBG, Kew

February 19th, 2016

2016 PSI Meeting will be in the Netherlands

For more information and to register please visit this page:


February 6th, 2016

Effective following the 2016 PSI ELECTION, I, Eric Wortman, President, and Crystal Stone, Treasurer, resign from our offices of the Passiflora Society International.

After 4 years, we are leaving the PSI with more money than we started with, almost 800 more members, a working multi-functional website, many new accounts and partnerships, a Facebook page with over 1000 followers, and a drastically increased international Passiflora community with which to do business.  We wish the remaining and newly elected officers the best of luck and continued success, building on what Ron Boender began in 1990.

Crystal and I will still be attending as many meetings as we can in the future, as well as assisting in their creation, funding, and advertizing whenever possible.  We will still have a presence on Facebook, and will soon have time to add significantly to our existing, (yet dormant the last few years), website: www.bloomingpassion.com

It was a tremendous joy to be working with the wonderful members and contributing officers for the past 48 months.  It is not an experience I regret in any way, and will take with me many wonderful memories, especially from the meetings when we get to all meet in person, share experiences, tips and tricks, and get to know each other.  We have made dozens, perhaps hundreds of friends throughout this experience, and treasure them more than I can put into words.

Best regards,
Eric Wortman and Crystal Stone

For more information about our term in office and resignation, please click HERE

Blooming Passion – A Place for Passiflora Enthusiasts Worldwide.


To nomination someone for President or another office, click HERE!


Sept 15th, 2015

** As we go into publication mode for our first Cultivar Special Edition Newsletter, we are temporarily not accepting any new registrations.  Please check back for removal of the moratorium.

June 18th, 2015

** The 2015 Seed Bank Sale will be held starting this Sunday!  Please click HERE for more info.

March 14th, 2015

** The 2015 PSI Official Meeting is set for August 7-9 in San Francisco, CA.  For more details and to sign up, CLICK HERE!

December 17th, 2014

** The 1st edition of the Official PSI Calendar is ready to order! This gorgeous 2015 calendar was created of member submissions, and votes were tallied to come up with the top 13 photos. Included are images from Dan Long, Liza Rock, Sandra Prais, Markus Varga, Eric Wortman, Kyle Rahrig, Nisa Knust, Rob McPhail, and Maurizio Vecchia. Help support the Passiflora Society International and adorn your wall with some of the most beautiful pictures of your favorite Genus. To order, CLICK HERE

October 5th, 2014

** For the next 2 weeks, you can vote on your favorite photo submissions for the Calendar Contest.    You may only vote for one photo per day, so place your vote carefully!

** The 2014 PSI Meeting in England was a huge success.  Soon we will have photos available to view.

August 29th, 2014

** Starting Sunday, August 31st, we are introducing the first annual Calendar Photo Contest!  Submissions will be allowed for 5 weeks, followed by a 2 week voting period.  Those with the highest vote count will be in the 2015 Official PSI Calendar.

July 7th, 2014

** The 2014 PSI Seed Bank Sale is in full swing!  “Donor Week” started yesterday for those who donated seeds to the sale only.  Premium Members will have access beginning the next Sunday morning July 13th, and then all members will have access the following Sunday morning, July 20th.  Many packs were reduced in price from $5 to $2, and many pack sizes were increased, including adding a “Giant” size for 75-100 seeds!

June 1st, 2014

** The PSI removed the moratorium on hybrid registrations, introducing a new and improved Registration Page!

May 6th, 2014

** Premium Members now have access to many more past and current PSI newsletters for viewing and download!

Feb 13th, 2014

** We now have over 500 members!  Here is a List and Map of where you all are located around the world.

Jan 1st, 2014

** More information has been added for our 2014 PSI Meeting in England!

Dec 21st, 2013

** We developed a page to sign up for the 2014 meeting, where more information will be posted as we get closer to September: SIGN UP!

** The Spring 2013 Newsletter is being packed and shipped in the coming days.  Premium Members watch your mailboxes! 

** We just passed 50,000 hits on this new website, with 6465 unique visitors from 50 countries!

Oct 20th, 2013

** The location for the 2014 PSI meeting has just been announced!  It will be in England, mid-September.  More information will be emailed to all members and posted on Facebook as we progress closer to the date.

Sept 19th, 2013

** The Fall 2012 Newsletter was shipped recently to all Premium Members, and the Spring 2013 Issue is currently being prepared for printing.  The Seed Bank is still open for a bit longer!  Take advantage of it while you can…

May 30th, 2013

** The first seed sale was a HUGE success!  Some changes need to be implemented, and the shop will be re-opened soon for another brief period.

May 4th, 2013

** It is the eve of the 2013 Seed Bank Sale – Donors Only week!  Get your shopping lists ready!  http://www.passiflorasociety.org/member-benefits/seed-bank/

April 19th, 2013

** We just broke 20,000 hits from over 2,400 unique visitors in 50 countries, with almost exactly half the hits coming from the USA.  We truly are an International Society!

** Our first big Seedbank sale is only a couple of weeks away! We have stopped taking donations, and are tweaking the system to make sure everything works smoothly before we release the official dates, but we are very close… so stay tuned. PLEASE be sure you are a Member of the PSI on the website if you wish to participate in the sale: www.passiflorasociety.org/join/

** The Fall 2012 Newsletter will be sent to the printers next week. If you are a Premium Member, expect it in your mailbox in May! We may be still playing “catch-up”, but the Spring 2013 newsletter is nearly complete as well, and should be shipping this summer, as well as our Fall issue getting close to completion.

** We have a new hybrid/cultivar Registrar.  Please help me welcome Shawn Mattison to the team!  He is diligently learning the regulations and stipulations so that every current and future registration put through the PSI is done so with the utmost confidence that proper nomenclature and ICRA/ISHS allowances are followed for all posterity. Besides all that, he’s a nice guy to work with. If all goes as planned, we will begin to accept new hybrid registrations in June or July.

Feb 20th, 2013:

– The 2013 Official PSI Meeting and Cruise is complete.  We will add photos and stories soon!

– We just added the 2 most recent PSI Newsletters to the Premium Members Download area.

January 1st, 2013:

– Happy New Year to us!  This new PSI site has now had over 10,000 hits from more than 1,100 unique visitors from 50 countries in just the few short months since launch!

December 4th, 2012:

– Translate our website into any language with the click of a button at the top of your screen!

November 12th, 2012:

– Only one week remains to join the 2013 PSI meeting and Caribbean cruise!!  If you wish to come or need more information, be sure to check out our Meeting Page.

– We added a Seed Bank Donation Contest ending December 1st, the overall Top Seed Donors, and a list of our current Seed Bank Inventory!

November 4th, 2012:

– We just added 10 past PSI newsletters for Premium Members to view or download!

– There is now a discounted Premium Membership rate for 2nd, 3rd and 4th members in your household!

We are constantly adding content, so be sure to check back often…


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