Native, flowering understory trees include dogwoods and viburnums. There are some really lovely ones. Swida alternatifolia, Cornus Florida, Doublefile viburnum

I like trees that flower at different times that have lovely leaf change in the fall:

Amalanchier (service berry)- tiny white flowers early spring, variety will determine leaf color in fall.

Witch hazel- loads of lovely varieties for early spring bloom

Eastern redbud and dogwood (white and pink varieties)

Kousa dogwood- blooms in early summer

I also love paperbark maple- cinnamon color peeling bark for winter interest too

Blue tinged evergreen trees

I love pink Dogwoods.

I really like dogwood and redbud both. This tree line was full of mulberry growing into each other so I had to cut a bunch down. How much room do I need on all sides of a dogwood or a redbud?

Cladrastis kentukea. The species trees are white, but here is a 'Perkins Pink' in bloom:

I would plant the dogwood and red bud, however I would plant other flower shrubs to have flowers sooner. Flowers could be roses, spirea, azaleas, camellias, rose of Sharon, (keep it trimmed) etc. There are many followers like daffodils, tulips, dogwood. It was blooming when we planted it.

I would plant the dogwood and red bud, however I would plant other flower shrubs to have flowers sooner. Flowers could be roses, spirea, azaleas, camellias, rose of Sharon, (keep it trimmed) etc. There are many followers like daffodils, tulips, hydrangeas, etc.