Lost trees so Hostas are turning brown and the white on edges.

Since they are already turning brown and trying to die out, I would go ahead and dig them up now and put them in a partly shady area. They may or may not do well for the rest of this season, but they will do well next Spring and Summer.

If you think they will die in their current location then move them now. Better a stressed hosta than a dead one. Protect the roots and keep as much soil around them as possible.

Although no the proper time to transplanted so in the early morning before it gets to hot to prevent further stress

I agree with the other two people. Move them into a new shady location now. I just moved one that was not stressed last week and it is doing fine.

Hostas are super hardy. Even if they are leafed out you can dig them up and move them. Just carefully dig around the plant, then scoop in and it should pop right out. The leaves might wilt, and it may not still flower, but it will survive to regrow next season.

Right away, they need shade. Can also split up plant if over grown . Most host as are petty hardy. Good luck, Pelic

Use something to tie the leaves into a safe bundle, dig up the roots and they will be fine. I dug some up when I turned a area of horrible evergreen type shrubs into a hosta garden. There were a few mixed in and I plopped them in a pot until I knew I had all the new hostas in where I wanted them. The were in the pots for nearly three months before I replanted them and they are doing great now and never even wilted on me.