Rob, thank you for the information about the special markers. I have a tractor supply store nearby. I'm thinking that my labels are long enough there's room to write everything in paint pen, pencil, and cow ear marker! Just in case!
Like Larry says though, the raccoons around here are bulldozers. Their back feet are as long as my hand. When they finish their business, nothing is the way you left it. If it's just the one plant, yes, you can re-bury the label along with the plant (if it's still alive). But the thought of putting my 400 plus babies out there (some of which are tiny) was giving me nightmares! At first, I was thinking to use electrical fencing, but decided not to put my trust in that.
Right now, I'm only marking the crosses, not individual plants. So it's not so many. 400 babies out of twenty crosses. Not that I didn't try for many, many more!