This Phlox Bouquet is found on pg. 71 in the book "Encyclopedia of Embroidered Flowers" by Barbara Baatz.
I didn't have the exact floss colors listed in the book so I used the closest colors I had on hand.
Stems: Stem Stitch (2 strands of floss)
Leaves: Buttonhole Stitch (3 strands of floss)
You will notice in the above photo I added dots to mark where my flowers/knots would be stitched as a guide.
Flowers: Colonial Knots (6 strands of floss)
I watched this Colonial Knot Video Tutorial to learn the stitch.
Flower Centers: Black French Knots (3 strands) instead of beads as suggested in the book.
My Pistil Stitch flower (left) and Buttonhole Stitch flower (right) on each side of the Phlox.
The Colonial Knot and the French Knot look very similar. I prefer the French Knot, only because I am more comfortable stitching them, but I am glad I finally gave the Colonial Knot a try!
Slowly adding to my flower sampler below... All my flowers stitched so far can be found on the Flowers page.