Sure, it will climb your hedge. I am sure it would look very nice with the white flowers against the dark green hedge. I grow a lot of clematis up my cedar hedge without any problems. It will just need extra water. You will have to prune your hedge when the clematis is dormant.

Are you getting this sunshine down there also? It feels so good after that miserably cold spring in the PNW. The sun is making my clematis bloom finally. Every day more and more clematis blooms are opening up. This is the latest they have ever bloomed. July is going to be great! Everything will be blooming at once. Karen

Here's Huldine growing through a cedar hedge.

{{gwi:603660}}

Yes, finally getting sunshine down here.

I'll plant the alba luxurians on the boxwood then. Thanks.
I never prune it, I want it tall, it is between me and the neighbors.

I'd like to decorate the arborvitae hedge but the sun is on their side not mine and I bet it would grow through and I'd never see it again.