A couple years ago we had the pleasure of hosting Amanda and Nicks wedding at the barn. Amanda is the Amanda of Untamed Petals(amandajudgeny.com) and Nick is her super wonderful guy.
Amanda found this source for her flowers which I have been wanting to share for a long time now. They are not local but maybe you have someone coming down from up north that could help you out. Worth a try. Here is a link to the site. cgdahlias.com Really beautiful flowers. Also check out Amanda and Nicks wedding to see pictures of said dahlias. It is posted on 100layercake.com