San Francisco Fern Society
A society for the appreciation, cultivation, study, and conservation of ferns.
We meet quarterly. All meetings are free and open to the public.


Our Next Meeting:

Date: Saturday, February 24, 2024

Time: 10:00 am to 12 noon

Speaker/Topic: Dan Yansura will make a brief presentation on Growing Ferns from Spore, to be followed by hands-on experience in sowing spore. All materials will be provided. The fern spore -- donated by our group's members -- will include some very unusual species, many of them collected on fern-hunting trips across the globe. If you have spore to share, please feel free to bring it to the event.

This will truly be an opportunity to learn a lot, have fun, and (potentially) add some exotic ferns to your own collection. We hope you will be able to join us. For San Franciscans who need a ride to Berkeley, please let Mary Dee know and we'll try to arrange a carpool.

With this notice, we are welcoming a significant number of new members who signed up at SFBG's Gifts at the Garden event in December. It would be great to see you in Berkeley.

Because of the nature of this program, we will not be able to offer streaming access. Copies of Dan's slides will (eventually) be available on our website.

Location: UC Botanical Garden at Berkeley.

VERY LATEST: Rob Co sent Dan a few very nice fern photos from the Philippines. (Posted June 25, 2023)

EVEN NEWER: Dan's friend Chen-Hao Hsu sent him some recent fern photos from Costa Rica. (Updated with 21 more photos on January 16, 2023)

NEWER: Alex Adams provided a link to the short video (37 seconds) he talked about at the May 2022 meeting. From Alex: "It is of my Lecanopteris mirabilis doing what ant ferns do, providing a home for an ant colony. The video recorded me telling my wife that they are attacking my hand and my phone and that I was turning it off. They really do provide a good defense for the plant!"

NEW: The UC Botanical Garden at Berkeley has a new web page about their fern collection.

Slideshows from past meetings have been moved to their own page because this page was looking way too cluttered. The latest slideshow to be posted is Dan Yansura and the SFBG fern team's (Alex Adams, Bronwyn Gundogdu, Mary Dee Beall) presentation on Cloud Forest Ferns: Creating a Fernery in the San Francisco Botanical Garden Meso-American Cloud Forest from the August 2022 meeting.

Two pages are under construction: a fern photos page and a links page.

To be added to our mailing list, please send a request to

This website is maintained by Tony Gridley.