Flowers have been worked into textiles for as long as there have been hands to hold a hook or needles. The difference now is that the stitches that make them have never been easier to find, follow, or finish in an afternoon.
In crochet, the magic is in the puff stitch and the bullion stitch: loops pulled up and gathered to form a rounded petal, dense and dimensional. Arrange five around a center ring and you have a flower that holds its shape without a vase.
In knitting, the bobble and the nupp do similar work, raised stitches that catch light and create depth against a flat ground.