Sometimes we focus so much on the color of flowers that we forget about their other significant attributes.
I have used fennel as filler with all sorts of flowers and have come up with some really fun arrangements!
Japanese anemones have nice foliage that stifles weeds...and they seem intent on garden domination!
Pyracantha is a shrub with evergreen glossy foliage and broad spreading growth. One disadvantage is its thorns, thus the common name of firethorn.
Sometimes Ismene is called the Peruvian daffodil because of its shape.
Summer bulbs are labor intensive, as they have to be dug and stored each fall; however, they add immeasurably to the diversity of the summer garden.
Louisiana iris are easy to grow in the Midwest if you have good soil, moisture and space for them to spread.
Just about any herb you grow can be used as filler to increase the impact of a few garden flowers in a vase.
I have recently become besotted with chartreuse foliage, even though, or perhaps because, it is a color that I have never been able to wear.
Many American gardeners have tried to imitate aspects of English gardens.