10 years is when I brought back my first plumeria. These new cuttings just came back in September.
I'm zone 5, Wisconsin. I used a mix of 2/3 perlite, 1/3 potting soil with an inch of pea gravel at the top. I'll have to take some pics, but there's not much to see yet.
I'm happy to purchase some grow lights if that helps. I've been searching but haven't found any tutorials with a "best" way to do it and a "best" light system to purchase.