Perennial

i think they also come in purples and pinks ~ sweet william?

More flowers opened today, there are quite a few different ones. There is a white-red flower that is really eye-catching and a few with pink and red. It's a very pretty combination of colors, they must spread every year.

Im sure its sweet william but i rather think it is an annual here??

http://aggie-horticulture.tamu.edu/wildseed/38/38.1.html

you are quite right ~ it is in the dianthus family.

I've seen it listed as annual, biennial and short-lived perennial. Whatever it is, it sure spreads quickly. I can't believe how many have opened this week. I tried checking that link but couldn't get it to open, I'll have to try it again later