It looks like some type of Brillantaisia.

Here is a link that might be useful: images

Carol23 is right and I am assuming this isn't growing in z3? Luckily someone knew it but for future reference it would be helpful to say where the plant is growing.

THANK YOU , YES THAT IS IT, THOUGH GIANT SalVIA WILL BE EASIER for me to remember than brillantaisis. its growing in Adelaide south Australia.
many thanks