I ignored it for 3 months figuring it will die anyway - but there it is, leaning against a rock wall still alive.

so...Can I save the plant? How can I get it to grow new roots. I mean there are none! the base of the stalk is firm and green and where the roots came out - nothing.

Suggestions most welcome - thanks.

Since the leaves are healthy I surely wouldn't toss it.
Does the soil your Bird was planted in stay wet all year round?

If it were my Bird, for the time being, I'd plant in a container with appropriate soil, until (if) roots grow in. Don't expect miracles, especially since winter is nearing.
Do you normally fertilize this time of year?
I'd also add a hormone/vitamin product like SuperThrive..
Keep the Bird warm, in a sunny, (not scorching) spot.
Last, keep your fingers crossed..lol.
If you decide to plant in a container, use a pot that isn't too large. You'll need to stake especially if your Bird is tall. Good luck, Toni