blue or purple

 
Phlox divaricata (blue phlox)
 
Colinsia Nutt (blue-eyed Mary)
 
Phlox bifida (cleft phlox)
 
Viola sororia (common violet)
 
Prunella vulgaris (heal-all)
 
Monarda fistulosa (wild Bergamot)
 
Melissa officinalis (lemon balm)
 
Hepatica americana (liverleaf)
 
Scutellaria galericulata (marsh skullcap)
 
Phlox subulata (moss phlox)
 
Phlox subulata (moss phlox)
 
Commelina communis (Mouse Flower)
 
Oxalis violacea (woodsorrel)
 
Pacelia bipinnatifida (phacelia)
 
Delphinium tricorne (spring larkspur)
 
Campanulastrum americanum (Tall Bellflower)
 
Mertensia virginica (Virginia bluebell)
 
Cynoglossum virginarum (wild comfrey)
 
Geranium maculatum (wild geranium)
 
Aster prenantoides (Zigzag Aster)
 
Tradescantia subaspera (zigzag spiderwort)