"Norman Bird Sanctuary is a wildlife sanctuary and environmental education center with more than 325 acres of diverse habitats and 7 miles of hiking trails." - From the website, July 6, 2018
What Grows On in RI is free for everybody, but well-organized information isn't really free. There are expenses. If you like using the Calendar and find the ProvGardener website useful, I hope you'll make a contribution through my Patreon page. And let your friends know about the Calendar!
In July 2018, I have begun developing comprehensive indexing for all the listings. This is a BIG project, and it will take me a while to debug and complete. If you have suggestions for better terms for your organization, please let me know via email. - Sue Korté, Managing Editor