spampot wrote:

Paulownia blossoms occur in clusters, rather like chestnut "candles,"
though; not the blooms along the branches before leafing out. I'm sure
it's a redbud (cercis canadensis).


Yep, good call, I like your analysis better than my guess...

Is redbud a prolific self-sower? I'm not aware that it is here in
near-coastal PA.

Bill