Tree ID please
Anyone recognise this tree, please? It's growing in Tampere, in mid Finland, and I'm pretty sure it's not a native - we saw it in a couple of parks.
Rough bark, characterful shape; long heart-shaped opposite leaves with crinkly edges...
...and clusters of pale lemon, petal-less flowers buzzing with bees in early June.
Any ideas, anyone? I'm stumped...
Thanks in advance!
"The one who plants trees, knowing that he will never sit in their shade, has at least started to understand the meaning of life." Rabindranath Tagore