Is there a limit to the number of pictures of a single 'plant' that one may post? For example, I recently posted a picture of a flower bud of a Magnolia Grandiflora. Could I post another picture of my magnolia? Further, what if my other picture is very similar to one that someone else has already posted? Could I still post it? (Let me know if I'm not making sense - has happened.)

No, there's no limits. But you only receive an acorn for the first type of photo for each plant (e.g. "whole plant", "seeds", "blossom", etc.

Karen