Such a beautiful pattern by, apparently, Sophie Digard. Can't find instructions anywhere but on inspection it looks like randomly sized rings of double (US: single) crochet into which chain loops to 7 chains I think) are stitched and joined as you go.
Tutorial for Flowers in a Row. Pattern: Cast on multiple of 6 sts + Row Knit Row Knit * (knit the next stitch wrapping the yarn 3 times around the needle) 5 times, Knit repeat from * to end. purl repeat from * to end.