First, create a foundation with foliage. This is the framework for the arrangement. Build a pleasing, asymmetrical shape that leans on the lip of the vase and has a high point in back. Make sure it’s not too thick, so there’s room for the flowers.
Second, add large “face” flowers, cutting stems at different lengths so some blooms nestle low and others extend. The crisscrossed foliage stems in the vase work like webbing to hold flowers where you want them. Take your time, experimenting until it looks good.
Finally, weave in wispy elements, like climbing flowering vines or ferns, in three strategic spots: up high on one side, down low (spilling out of the vase), and in the middle, as if they’ve pushed their way through a cluster of larger blooms.