Yes, I was talking about the dreaded wooly adelgid. The damage has been awful!
Look what it did to the Smoky Mountains:
http://cdn.c.photoshelter.com/...
Weigela only blooms for about two weeks for me, but it's a pretty shrub even when not in bloom. Some cultivars get huge but my 'Midnight Wine' stays at around 2 feet.
If you're looking for an accent tree in part sun, you have so many choices in zone 7!
Redbuds do well in partial sun and bloom early. There is the chartreuse variety 'Rising Sun,' the red variety 'Forest Pansy,' and a couple of weeping varieties that are really pretty. I really like 'Lavender Twist.'
Deciduous magnolias are great and they have dwarf varieties if you need it to stay small. I personally like the Sisters series like 'Jane' and 'Ann.' They have fragrant flowers!
And if you like fragrant flowers, nothing beats my Korean Spice viburnum. I hear sweetbay magnolia also has very fragrant blooms.