On Tue, 28 Jul 2015 11:44:53 +0200, Willi_9
My guess is 'Crape myrtle' (Lagerstoemia).
Lagerstroemia indica to be exact.
I ran into the former owner of our apartment and still our building's
gardener yesterday evening and he said they were called "oya ağacı",
which means "lace tree" in Turkish. That led me to:
and thence to:
He's got another one (white) in his own yard.
Sidera errantia quibus procella tenebrarum in aeternum servata est