Hi All. I haven't been here in awhile. Hope you are all doing well and enjoying your gardening! I recently bought a 6 x 4 x 7 hobby house/green house. I'm still not sure how to use it but I figure it will be a learning process. Over this summer, I have rooted 8 crepe myrtles. They are all between 8" and 12" tall. They are doing great on my back deck for the time being but it won't be long before the temps start dropping. So my question is, can I just stick these in the Hobby House once the temps start getting cool this fall? Since they are so small, will the winter cold kill them? I'm in zone 8a. Our winters are usually mild, however, once in awhile we get a really cold one. Last year we dropped down to 6 degrees and it lasted for about 2 days. Any advise?
Added a bit of info on the hobby house:
-6x4x7 Palram Hobby House
-Automatic vented ceiling panel
-adding a small misting system but its not automatic.
-it's being set up in an area that gets full sun from about 8:00 a.m. until 6:30 p.m.
***It's not put together yet. We are working on it and it will be up before fall.