I'd love some tips on espaliering a grapefruit tree against a cinder block wall. Apart from the obvious of creating supports and pruning specific branches (which I can google how to.) Hearing some personal experiences of challenges you faced with yours or hopefully the ease of maintaining them once established? ha ha

It will be in a full sun location and the soil is a bit heavy and loamy so I plant to amend it somehow. Haven't researched that part yet.

One specific question though. What is the largest size that I can get away with buying and training? Or do I have to start with a little bitty one?

Thanks in advance!