You can participate in Fascination of Plants Day by sharing your photographs.
An obvious choice for photo-sharing. To take part in Fascination of Plants Day, you can use the hashtag #PlantDay.
Twitter’s not just text. The hashtag on Twitter, it won’t surprise you is #PlantDay (or #PlantDayUSA if you’re American). We’ll be following #PlantDay, though there’ll be much more than photos in the Twitter stream.