Answer: That is a tough question. There are several species of yucca grown in your region. Yours is most likely Spanish-Bayonet or Aloe Yucca (Yucca aloifolia) or Spanish Dagger Yucca (Yucca gloriosa). Both of these can be propagated from stem and root cuttings. Some of the other yuccas are much more difficult to transplant or propagate.
Your yuccas have been through alot. I'd try planting them and see if they make it. Water them in well at planting, but then back off and only water when dry.
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