Hi Jo Ann -- as far as I can tell, there is no dedicated forum or thread to Earthboxes, so here or on the container growing forum would probably be the best place to start one. (Oh, wait -- you HAVE started one!
)
If I recall correctly,
@DrDawg grows garlic in Earthboxes, maybe he has some input for you (and maybe knows of some other growers that would be interested in sharing their experiences).
And -- you have some pretty bold deer, to come right onto your deck!!