Analyze the garden area to determine how you want to use blue flowering plants. If you have a small yard or flower garden space, you will want to use more blue flowering plants than other warmer colored flowers because blue flowers and blue toned foliage gives the appearance of more space.
Plant tall blue flowering plants, like delphenium, agastache, or baptisa, in the back of your flower garden to give a perception of a receding landscape and spaciousness. Blue flowers at the back border of a flower garden will visually draw the eye to a distance, giving the illusion of depth.
Use blue flowering plants to lure and draw attention to a specific attraction in your landscape, like a fountain, garden statue, or a special flowering plant of a different color. Blue flowering plants connect objects and other plants surrounding them. The eye rests easily on blue flowers and tends to stay longer, which allows the object you wish to spotlight to be noticed easily.