Ok, so far this winter its been pretty cold for Sunny Socal.. 35 F is about as low as its gotten and ive had a lot of spotting and some deaths in my orchid collection. Now on thursday and friday the low temperature is supposed to be 29 F

. I have orchids growing outside all over the yard.. like alll over. I've been covering a couple groups up with random towels lol. But this time i cant really do that for all of them.. too many. What should i do?.... i really dont have time or room in the house for them all. I'm lost as what to do.
Also in my experience having an orchid go from that night cold to a warmish house hurts them more than just leaving them out there. I had a Dendrobium that had a couple rot spots after a couple days of rain so i brought it in and immediately all the leaves started yellowing and rotting.
Ben