It might, probably is, the cold weather we had but after I uncovered my roses most looked green and healthy, with new sprouts etc.
Now I will have to cut back the canes on about half, as they partially went black and on some the sprouts died and they are acting like they are not sure if they want to keep on living.
They have all been treated the same but some are going gang busters and some are just sitting there.
The ones we bought from Sam's are pathetic.
Now they were not impressive when I took them out of the tube but the same ones I took down south, they are sitting in a bucket waiting to planted yet, are doing just fine, actually growing. Those planted up north look like a failed suicide.
All I give the ones down south is Schultz root building liquid and water on occasion.
Same thing I give the planted ones.
I put some Just Natural Raised Bed Soil with Worm Castings in hole when I planted and maybe that was not a good idea but before that I just put them in with good soil and they they started to wilt. After the Just Natural they at least have kept the few leaves on green but not much else.
As I said the cold weather, especially near freezing probably did not help but as some old roses also are just sitting there while some are taking off, it makes me wonder.