How to Crochet Flowers | Crochet flowers are a delicate option for trim for a project. Knowing how to crochet a flower can greatly enrich your craft repertoire. A crochet flower can stand alone as a pin or a barrette, or it can be used to accent other pieces. A crochet flower can be attached to various crochet or knitting projects, such as a scarf or a sweater. It can also be embellished with beads or gems to add even more detail.