Perennials blooming mid July in my zone 4 to 5 gardens are these showoffs:

black lace elderberry

clematis jackmanii

daylilies and shrub roses

garden phlox

gayfeather and grass

hydrangea and sage

succulent stonecrop

weigela rebloom

In addition to the beauties above, more roses are in bloom this week in mid July:

buttery yellow rose

hot and pale pink climbing roses

hot pink climbing rose

coral beauty rose

pale lilac rose

perfect peach rose

pink freckles rose

pretty in pink rose

pristine white rose

veranda roses