If you're decorating a small area of your home like the powder room, or have a limited plot of land for planting, tiny blooms like forget-me-nots or scilla flowers are ideal blue decor; these flowers will easily fit in a short or slim vase. To adorn a large kitchen or dining room table, an arrangement featuring big blooms like the blue cornflower will add a bold blue hue to the room.
Flowers in blue represent trust, loyalty and sincerity. Adding large plants like the blue aster to your yard can represent the trustworthiness of family members; the flowers were also thought to ward off evil in ancient times. As a gift, a bouquet of blue hyacinth flowers is appropriate, due to the lovely bell shape of the flowers and their special meaning.
Blue flowers are also thought to have a relaxing or calming effect on people; accordingly, you can feature blue flowers in your bedroom or bathroom to help you unwind. For instance, if you've decorated your room in white, the striking blue color of gentian flowers will add a nice contrast to the space. The tall flowers will also look great in a clear glass vase to highlight the color even more.