@CindiKS
>>>> Any advice on keeping these roses going until spring?
Yeah ... move them away from the light ...
Sounds kind of counter-intuitive doesn't it ? There are two reasons I am making this suggestion. 1) commercial rose growers in Wasco, which is where J & P and Weeks and other big rose distributors contracted to have their roses grown, yanked ... yes, yanked ...the rose plants out of the fields by machines in October, then processed the roses and held them in cold storage until bare root season ... around January when they were shipped to nurseries.
Cold temps and no light. 2) photosynthesis in roses slows down at 70F. So, with your cold temps, even though the leaves are getting light, they are not working to provide food to the plant.
Yes, plant them as soon as you can. I don't know when spring arrives for you, so that's a judgment call on your part.
Of course, you should have mentioned the lava rocks. Sharing experiences about what works and what doesn't work is part of gardening.
Oh, yes, again, you are very, very lucky to have good soil. My soil was dead when I started this garden. The parts I haven't cultivated still doesn't grow weeds ...
Smiles,
Lyn