Here is the exciting part: it appears to have a root. I followed the directions I found on http://www.azplumeria.org/growingroots.htm . It says to plant in a clear cup with no drainage holes. Water at planting time, then pretty much leave it alone. The clear cup allows you to check the root development without disturbing the plant. It is looking good so far!
Note to Caroline: 2017 Season Start, Portland, OR
41 minutes ago