I just walked by a group of enthusiastic students on my campus today who are celebrating International Fascination of Plants Day with free plant giveaways and informational posters about plant science. It was a new idea to me and I told them I’d let some more people know.
According to this https://plantday18may.org/ the students may be a day early. But FYI there’s an “official” encouragement to be fascinated with plants somewhere, whether today or tomorrow! ;)