What is your soil like Amsterdam? We grew a Liquidambar in our previous garden - in clay - and it only grew very slowly, to three-and-a half feet in three or four years. (Obvs no picture, sorry!) Hope someone can help . . .

Google says 6m high and 1m wide at maturity..

Yes Sue, that sounds like the giant one at Wisley, but garden designers still suggest it for our modest gardens!

Ah well, these days some people don't seem to mind - just get rid when it gets too big...
Makes you sad though doesn't it.

Hi, I think 'google have got their sizes wrong on this 1, my understanding is that it puts on 1 - 2 ft in height each year, growing to around 60 ft, by about 6 ft in width, Derek.

Well there certainly seems to be a bit of a discrepancy on its final size. Maybe not suited as a small garden tree after all ....

Lol Derek - maybe Google thought it had finished growing when it hadn't!

I had a liquidamber 'Worplesdon' on heavy clay. It grew but never developed good autumn colour and was a great disappointment. Notice the past tense!