The simplest, most beautiful floral trend: rooting plants in water. All you have to do is snip a plant at the base of a leaf and place it in fresh spring water in a glass vase. I imagine this doesn't work for every kind of plant.
Gather an assortment of cylindrical vases in various sizes and large leaves in a variety of textures and color striations. Put a little bit of water in the vases and tuck the leaves inside for a natural display that has a modern twist.