Of course! I'm not in a lot of groups that focus on gardening and homesteading and such, but I'm sure there are some out there. Amazing Nature might be a good place to start, and they might know of other groups that would appreciate your posts. There's also Discovery-it, an Italian-based group that likes a variety of topics.

@ewkaw is a big plant enthusiast and successful plantkeeper AND orca, if she has the time she might be able to drop a few suggestions for groups.

And then there's the caturday tag...