You can find other like-minded gardeners by tapping on Discover and then "Popular" or "Recommended". There you will see other great photos of plants and gardens and you can of course “follow” anyone that you see there should you like to do so!
Should you ever need to reply to a message in your feed or just want to say 'hello', simply @username an individual i.e. @teamgardentags and that person will get an alert in their profile. Really hope this is helpful and you enjoy using GT! 😃