I was just given this cutting. It is about six feet tall. I would love to get a head start with such a big plant, but don't want to risk losing it all. Is it too big?

I have never tried to plant a cutting that big. It doesn't look like it's had any leaves lately, how old is cutting. The thicker the branch the harder it is to get started in my experience. I would take 5 or 6 smaller branches and try those. Maybe someone else can offer you more advice. Good luck with it😎

I've had a lot of plumeria cuttings, but never anywhere near that size! I doubt it would root like that. I'd cut it into a number of smaller ones and root them.

Bigger the better IMO but I'm no expert. I don't see what the diff would be. I've rooted mini trees (really large cuttings with no issues, none quite as big as that though. I'm also curious why it has no leaves. You'll need to stake it with at least two 4" diameter stakes. Where do you live?