Does anyone know anything about gardening?

I have an Arabica coffee which I have been growing for some time.

It's got a bit big, but I find it very hard to bring myself to cut it down for fear that it would kill it.

Does anyone know much about them?

Talking of cuttings above... If you do trim your coffee can I please nab some of the pieces? I'll try rooting them. My coffee plant died while in the care of Sparky Sr.