Fatsia japonica

The person across the street from me has this, and they have let it get out of control. It is like a forest, and the roots are able to push up through the asphalt of the street.

Is that what is called the false Castor Oil plant , Thorneyside ? It looks very happy .
We have had two for years , originally a "rescue" from Woolworths , and kept as a house plant , then divided and planted out . It is indestructible , although OH tries very hard to do so !

This one is about 15 years old Wylie but has it's leaves removed for floral arrangements on a regular basis.
I believe that's it's other name Driad. I also have the variegated variety and 'Spiders web', a mottley one. They don't grow as fast as this basic variety.