Zone 8b Willamette Valley OR.

Dasylirion quadrangulatum - I have potted it up from 1 gallon to 3 gallon pot. I'm keeping it outside this first winter, in my warmest and sunniest spot, but will try to move it under cover during heavy rain events, and will also protect if the temperature goes below 15F. If it looks good in spring I will plant in the ground.