RE: How early to put portable stand up???
My partner and I leave most of our ladderstands (11 of them)up all year and for several years at a time.
We do have a couple climbers and a couple hang on stands in the truck in case we need to change up.
I'm going out next weekend and put up a couple of pop up blinds. They will be out all season too.
Helps if you hunt private land.