I have givin mine Vetrex on cold damp weather periods on there combs
there are numerous types.
Coast Live oak and Interior Live oak will freeze In nevada. More the dry winds. You may get away with Canyon Live oak if you can find any. Virginia live oak can take the cold. The dry wind probably would damage it.
Pin Oak , English Oak , Sarlet and Red oak do well for sure.
I sell plants to Reno and Northern Nevada.
Thank you for this info. Do you sell to anywhere east of Reno?