The petal stitch pattern is a classic in crochet. I have found it in two separate stitch dictionaries and since have been notified that it also is in a Leisure Arts publication as a large afghan with no border. I love that about this blanket. I love finding stitches that have passed on down through time! Link of the pattern is below!
Crochet Petal Stitch Baby Blanket
Petal Stitch Baby Blanket [ FREE CROCHET PATTERN ] downloadable pattern is available here.