I got mine in February and planted it in the little peat pot it came in. Mine is turning into a beast.

My Julia Child (Called Absolutely Fabulous over here) established itself and took off rather quickly. I'd put your rose in the ground unless you have environmental concerns.

M

My Julia Child also grew very quickly, and it's been quite healthy since I planted it a year ago.

Take them out of the pots they're in and plant them in the ground now. They are not too small. They will have a better chance of growing and establishing a large root ball to carry them through their first winter if you plant them now. If you wait until fall there's always a chance that they won't be established enough before the cold sets in. If it's anything like this last winter it came early and was relentless.

thank you for the responses. I will plant them this weekend.