Brent, thanks for the excellent insight into how to handle shallow freezes.
I have been wondering if the ice thing will work for my trees, but since I live in a townhouse community, leaving the water on all night long can cause some flooding issues--not to mention some dimwitted comments from the neighbors and property board

.
I am stuck, I'm afraid, lifting 100-200 lb trees-along with about twenty 30-50 lb trees-- and moving them inside or into covered cold frames for the duration of the freezes. I leave my winter set up --mulch piles and cold frame--in place until mid-April, sometimes until the end of April.
The heavy lifting wasn't a problem 10 years ago, but my back ain't what it used to be. On the bright side, my son is growing up and in the next few years HE will be the designated labor

.
So, my advice, grow your own help, as well as trees
