Hows the weather? If it is very sunny and hot shade the plant for a few days.

I would cut off the blooms--it will be easier for it to recover without having to support the blooms. Roses are tough--if it had some root system it should pull through.

Don't put any more stuff on it for now. Chemicals are not going to help.

A few months ago I transplanted a Lavaglut. It was a struggle and I did a bad job. Leaves died and dropped but, you know, it's one tough plant. It recovered nicely and at the moment is covered with blooms.

Colleen

PS: I didn't give it anything but water.

The weather has been unseasonably cool, and today its raining. I guess I will trim the buds off, keep the plant well watered and kee my fingers crossed (and stop feeling guilty).

You might consider cutting most of the top growth back to allow the roots time to recover.
When you dug it up all the tiny feeder roots stayed behind. Until those regrow, there is little moisture getting to the foliage and the bush is losing more than it can take up. Thus the drooping leaves.
When transplanting you should not use any chemical fertilizers. Most are fast acting and can burn newly forming feeder roots, delaying the recovery.
Keep in mind also the root system of an undisturbed bush is as large as the top growth. When diggging it up, most of the roots are left in the ground. That's why I recommend cutting back the top. A reduced root system can only support reduced top growth. It'll grow back once the roots recover. Better to lose it on the front end than to lose the whole bush. Keep watering deeply and consider shading the bush during hot sunny days until it shows signs of recovery

You must listen to Karl's advice - it's dead on, as usual.

I WOULD NEVER put a chemical on a newly transplanted rose. I think that's your sign.

Thank you Karl, and everyone else

I just pruned the rose back sharply (about 1/2 of the rose), cut off all the blooms, and some of the more dead leaves. I watered the plant yesterday, we had a good rain today, and the weather has been cool and cloudy. Hopefully the rose CPR will work

Will I know in a week or so if this worked?

If it works, the remaining leaves should perk up in a few days. Keep it watered well .
Today I pulled up a bush I thought was a rooted cane from a nearby bush. Found out it was a grafted bush that I had planted too close to the other bush,
I immediately put it into a 5 gallon bucket of water. 5 hours later I planted it in a pot and watered it until the water drained from the bottom holes. Last I checked the bush looks as good as it did in the ground.
When transplanting, if you lose all the soil from the roots, treat it like a new bare root and soak it good before planting.

Karl, Your advice is exactly the kind of thing I want to know!! Is there a book that tells you all this insider info? It would be quicker sometimes than trying to find all the links to the good answers. I know you must have cultivated years of knowledge and I thank you for sharing. For us "newbies" to the rose game, a good "primer" would be nice to have by the bedside table for a little "lite" reading! LOL

I haven't really come across a great rose book that isn't like all the rest (same info, nothing of any depth) and the one I want is out of print (A year in the rose garden) as mentioned a while back. Any books you are liking right now? Thx =)