Re: Mini update
Not sure about the Red Bay. A seedling was sent to me from John D of south NJ a few years back. It's got whacked back to 1' tall the past two brutal winters. I had a poly cage around it those years. This year nothing but it's been mild.
Glad to hear the hybrid Yucca seed is popping. Plant many and select the best forms. Get them into the ground in a sunny spot asap come May 1. They hate pots.