I'm making this into a 3-bloom boutonniere by adding one more alstromeria. Wire and tape the alstromeria as shown previously.
This third flower head is going to be bent slightly forward so that the head faces directly to the front when viewed on the tux lapel.
Here's a side view showing how I pressed the stem of this last flower directly against where the other two flowers are taped together.
Start taping high, directly under the 3rd flower head all the way down the stem. Snip the bottom of the wire off cleanly if needed and cover the raw ends with flower tape.