This creates the mechanics of the design. As flowers are added to the arrangement, their stems will criss cross with the stems of the foliage. The foliage stems help to hold the flower stems in place. The flower stems combined with the foliage will hold even more stems in place. This is well illustrated by the addition of the stock shown in the photo.
Stock is a lovely flower, available throughout the year, and has a nice fragrance.
In this photo you'll notice that we are filling in a bit more with our stock. Notice that in both this photograph as well as the earlier one, we also have the addition of a bow. There are many kinds of ribbon materials available. This provides an interesting contrast to the stock and ming fern. Next let's fill in with our lilies.