Clematis questions

So now I've got these clematis vines I've bought which I have not much clue about apart from what google can tell me.
My mother is who I usually go to for gardening advice. She suggested clematis to cover the fences and then I find out she has never grown it before. She wants to see how mine turn out! They must grow well here I've seen a few around the town.

I have Brother Cadfael to be trained against a fence and a Ville de Lyon clematis to grow next to it. How far apart should I plant them? And how much trellis space should I allow width ways?
Also would it work ok to plant clematis next to a pandorea vine ?

Cheers.

I think I can help here - well I hope I can.
A friend of Rosemeadows, Lynnette has fantastic ones growing round her verandas amonst climbing roses. She has wires strung along between the posts to train both plants along. They look wonderful. The roses give the Clematis support and allow them to trail there way along and the bed of all sorts of other plants underneath keep their roots cool.
Rosemeadow can tell you a lot more and maybe she has some pics of them at Lynnettes. I dont think we have.
We have a couple that we will be putting along our veranda. They like their heads in the sun but their feet kept cool. You can put mulch over the roots to keep them cool.
I think they would grow wonderfully along a fence.

Hi,
I have clematis amongst my climbing roses on my rosewalk. They look great.
The only thing is that each year I'm tempted to cut the dead foliage and then I remember - DON'T - it sprouts out againnext season.
Barbara B

A pandorea will take over your world... just a warning! You may need a machete - we do!! Personally, I would consider them too vigourous near roses or clematis. I've had to be ruthless before they detach the guttering... then the iron on the verandah....!!
(They do look spectacular though!)

Thanks I was wondering if the pandorea would swallow anything next to it. It is currently still a little thing but I have heard they can be quite vigorous. Hopefully is not too bad in part shade. I think I will keep the clematis with the roses then.