Looks like it was torched!

According to the website, they got down to -4F. Said that smaller windmills and most sabals were killed.

Yea the big frozen wave is heading in tonight. I finally wrapped the Butia on Saturday. The rest of the lads have to face Mr Freeze on their own.

It has hit here already..we got almost no snow out of it and a few hours of rain but the temps..it hurts your teeth to walk outside. its -1 now and was 0 when I came in from work this morning. They say the nightime low will hit -10 with wind chills around -30...then a high of 55 on friday 8)

One of my more sensitive cold hardy palms, first year in the ground Mexican Fan Palm. Has lived through 9 degree (partially protected) cold. Added 2nd string of Christmas lights to help with cold. Sun hitting it this time of day adds easily to the temp as well.

Your palms should be happy in there. Mine however hate me right now. If my windmills survive they will officially have graduated from all protection.

My remote thermometers stopped working this year but I have been keeping a keen eye on my boxes in my back yard, two are 3 x 3 by 7, two are 3 x 3 by 9 and one is 3 x 4 by 10. All have two strands of c9 lights in them and since this weather hit late sunday here in Michigan they've seen lows of under 0F and wind chills outside of them down to -20 to -30. The lights have pretty much been on none stop at this point. Keeping my fingers crossed they come out unscathed.

I should note that they are not air tight, a few of the sides are old doors that have door knob holes, and some sheets of plywood don't but up perfectly, so there's plenty of air gaps. If they make it through, I agree with others here, they'll definitely be made more cold hardy.

Your enclosures don't appear to be airtight which is good. They seem large enough, but not too large. If any condensation occurs, at least it will be on the inner wall and not on the tree itself.

My large one is 4'x4'x12' with room to walk around inside, and no signs of moisture buildup. I will be in it later this afternoon to inspect further. I'll post a vid or photo.