I made this necklace a couple years ago and it is still one of my favorites. Here's a look into my process.
The first thing I did was to string the beads onto medium soft-flex beading wire and crimp off the edges.... making two identical strands roughly 9" long.
I found these beautiful yellow agate chunky doughnut beads at the Bead and Button Show.
After tacking the center and getting the petals arranged I began weaving from the center outward roughly 2/3 up attaching the petals together for stability then I moved to the outer portion of the petals.......covering all framework with some form of wrapping.
To finish off the center I added a focal bead on a headpin that is wrapped around the eyelet stems on the back that will be used to attach the pendant to the beaded portion of the necklace. Add a closure of your choice, use jump rings to attach your flower pendant to your bead strands and Voila! You have a beautiful, unique new necklace. If you're having trouble with your wire weaving technique don't worry.... it gets easier with practice. I figured out a couple patterns I like by simply taking 3-5 inch pieces of heavier gauge wire and playing around with different patterns using 24 gauge wrapping wire until I found a technique and style that worked for me. Here's a few links to aid you in your wire weaving adventures:
Basic Wire Weaving Tutorial
Wire Weaving 101
8 Wire Weaving Tutorials