We recently went thru a nasty cold snap with several nights down to 15F which is nearly as cold as it ever gets here. The snow and ice are all melted away now. Good thing I had already wrapped up my tender Agaves which seem to have come through just fine.
Here's Agave Americana along with the PVC tent frame I used last year. I tried to use it again but it is no longer large enough. That Agave put on some good growth. So I just draped a plastic sheet over the whole thing and later secured it with some bricks to keep it from blowing away.
I had the same issue with Agave Parrasana 'Globe', and I used the same plastic tent solution. The plastic barrel I used last year year no longer fits. I must be doing something right if these guys are growing so well.
Of course Agave Parryi 'JC Raulston' requires no protection as you can see in the foreground of the previous picture. I have to admit that I did throw a blanket over my biggest 'JC Raulston'. A little extra insurance couldn't hurt. I did the same with this Agave Parryi 'Estrella' which sits along the south side of my house protected from rain but not from cold wind. Removing the cover reveals a chilly but undamaged plant.
Agave Parryi Truncata still goes into the cold frame. I suspect she is the most tender, but I don't really know. My Echeverias went in there too, and the Echinopsis. All seem to be in surprisingly good condition.
More cold is yet to come but it's all looking good for the time being.
