We call them Mimosa, but in California it's called Silk Tree. Either way, it's Albizia julibrissin. A lovely tree wherever the winters aren't too ferocious.

So not much chance of surviving in the north of England methinks!!

Not a lot Slimdil...

There is a type that will grow in the UK. Alan Titchmarsh planted one on last weeks Love Your Garden, I was intrigued so looked it up, here's what it said:

Unlike other Albizia species, the Albizia julibrissin Ombrella was bred to be more cold hardy and can survive winters in the UK and Ireland. It will tolerate temperatures as low as to -25° Celsius. Albizia julibrissin Ombrella also has darker leaves and bolder coloured flowers than other varieties of Albizia.

Here's the site: https://www.paramountplants.co.uk/plant/ajo/albizia-julibrissin-ombrella.html

Thanks for that Greenfinger.

You're very welcome, Slimdil.