Not the best record keeper, but this looks most like D. freynii started from seed last year. The nearest tag was Townsendia parryi-sur e not that
I don't know Dianthus very well, but I know what I like. The foliage on this one looks quite substantive, too.
Rick Rodich zone 4a. Annual precipitation ~24 inches
near Minneapolis, Minnesota, USA
I don't believe it's D. freynii, which, it seems, should have gray-green needle-like foliage, and unmarked petals. (I'm not certain if the petals should have fringed tips or not - I suspect not but I can't find high-enough-resolution photos to tell for sure.)http://www.biopix.com/Photo.asp?PhotoId=38770&Photo=Dianthus-freyniihttp://www.edrom-nurseries.co.uk/shop/pc/Dianthus-freynii-197p8220.htm
Scroll down to Reply #13 to see a prize-winning example of the species:http://www.srgc.org.uk/smf/index.php?topic=5301.0
I think it's more likely D. alpinus or similar.http://www.rmrp.com/Photo%20Pages/DD/Dianthus%20alpinus%20100%20DPI.htm
But... what say the experts?
Calgary, Alberta, Canada - Zone 3
-30 C to +30 C (rarely!); elevation ~1130m; annual precipitation ~40 cm
Here's another photo, from the University of British Columbia (E. H. Lohbrunner Alpine Garden, presumably - terrific place!), that suggests that the petals of D. freynii may have a small amount of serration at the ends, but that, overall, the petals are simple and oval-shaped.
I grow several D. freynii and like Lori states, the foliage is very grey-green and the flowers are light pink. I also agree that it is probbaly a D. alpinus selection....and a very nice one!
St. John's, Newfoundland, Canada
1800 mm precipitation per year
It appears to me that D. alpinus is the correct ID. I also grew D. petreus last year, but do not see that as a viable option. Thanks for the help!
USDA Z5, Lamoine, ME