I'm a big dianthus fan. It is one of those genera with seemingly a billion species, and lots of them are really cool. But my current favorite is Dianthus 'Rainbow Loveliness'
I grew my plants from seed -- which was prefectly easy and straightforward. The first year, they bloomed a little, but now, in their second year, they are REALLY showing me what they can do. I want more. Lots and lots more!