As far as I know, yes, but mainly because they are related to mint...and mint will root and grow anywhere. I've never actually tried it. I prefer to grow the perennial kind, though when I've broken a piece off while weeding, I've just stuck it back in the ground with about 50% of them rooting and surviving. Here's where I get my perennial plants; you might find it a good source for annuals as well. Always happy with them!

Here is a link that might be useful: Tropical Sage a.k.a. Annual Salvia