Cammellias

Maggiegreen6

can I plant camellias where old brick rubble and morter have been?

JennyJ

The rubble and mortar might have made the soil too alkaline, but you'd need to test it to know for definite.

Fairygirl

Yes - neutral soil is fine, doesn't have to be acidic, but the brick rubble and mortar aren't so fine. You'll need to build up the health of the soil or they won't thrive.
Is there much rubble or is it just a little bit? If the ground isn't good, you can always make a raised bed to help get more depth.
Camellias become big shrubs, given the chance, so you need a decent amount of healthy soil for them to do their best 

Maggiegreen6

Thankyou ladies,for your comments.on reflection I have decided to plant the camellias somewhere different.your views were very helpful