I would have thought semi-ripe cuttings from late summer would work but the usual for magnolia is to propagate through layering.

Thank you, Kildermorie. Have just joined the community today and it is really pleasing that members are so quick to help.

BTW, can you give me a bit more info on layering

Coipy and paste this into your brouser. It is excellent on layering techniques

http://www.hort.purdue.edu/ext/HO-1.pdf

Anchorman - many thanks; this is a helpful infomation leaflet