Okay, so the fic
Thirteen Months was written for me for Snupin Santa, but I'd be reccing it even if it weren't. I laughed through the whole thing, except for the places that made me cry, and the descriptions of Snape's garden and his efforts to keep control of it are perfect. The characterization was wonderful, Snape's growing attraction believable, and there's a quietness and subtlety about it that permeates the whole fic and makes you want to leap in and be part of it. Or it did me, anyway. It's the kind of idea that I might have, I hold the same characterizations as are in this fic, but I never could have put it together so wonderfully.
Go read. It's just a gorgeous fic.