I'm moving to a new house with lots of deer, and I don't want to lose my camellias (it's bad enough I'll have to give up the veggies). From what I've read, it sounds like denatonium benzoate tablets are the best things ever, but I can't find them anywhere.

1) Do they work? (I've heard you put them in the soil in contact with the roots, and within 45 days the leaves taste too bitter for deer, and the deer learn not to eat that plant.)

2) How can I buy them?

Thanks!