Small flowering shrubs for western pennsylvania and when to fall plant?

looking for small(dwarf) flowering shrubs suitable for western pennsylvania, some for spring bloom and some for summer into fall bloom. Would like to have color in landscape area thruout the nice season. also smaller colorful perrenials also for color donot want ones that grow more than 18 inches.

Small flowering shrubs for western pennsylvania and when to fall plant?
Azelea, rhodies, forsythea, tulips with daffodils,%26amp; spring bulbs for spring, followed by bleeding hearts %26amp; Forget-me-nots.



Josee lilac blooms late spring %26amp; continues to flower intermittently til frost. Just 4-6' tall.

Columbine %26amp; Primerose



Variegated Weigela flowers from late spring into fall. The variegated leaves add interest.

Lily-of-the-Valley (mid-late spring)



Peony Sorbert has pink %26amp; white blooms in early summer, %26amp; its foliage turns red in autumn.



Hardy roses %26amp; Hydrangea are nice for summer.

Hardy Cyclamen, Astilbe, Daylilies,(late summer-early fall)



Blueberry for fall red leaf color besides blooming earlier in the season.

Mums, Asters

The red leaves of the burning bush is also good for fall color.
Reply:Hello,

Try Hydrangeas for beautiful foliage and impressive flowers. Most will bloom for about 4-5weeks. Some species will hold the colorful blossoms until frost. For ever-blooming color from early summer into the fall, Stella D'Oro daylilies are an excellent choice. I'm also in Pa and use these often in landscape designs.