What's this tall flower?

[megletthesecond]

It's approx 1m tall, lots of white flowers have been flowering for the past fortnight. Its growing inbetween concrete slabs in a sunny spot.
Flowers are approx the size of a 50p and have a hint of pink in the middle.

Holly hock

I think it looks like verbascum.

Verbascum

Verbascum. Something in the family Scrophulariaceae. It's good to have a close-up of the flower, that goes a long way to working out which family, but it helps to have another photo showing the shape of the leaves.

It has the wrong flower structure for hollyhock, which is in the mallow family.

Lavatera?

It looks like a Nigel to me...

Thansk all.
Google is veering towards a verbascum blattaria.

I'll take another snap later.