I'd wait until after it has flowered - would be better still to wait until autumn but you probably don't have that much time. Remember it will have a large rootball.

thank you. I have got to dismantal the wall round the plant how deep down should i go or would the roots be contained in the wall.

How close to the wall is the camellia? And what is wall made of?

It is a brick wall. The space that the camellia is in is around 6 inch wide and about 4ft long. The camellia is very close to 1 end of the wall.

Then all you can do is remove it very carefully.

thank you for the advice I'll let you know how I get on.

please do