Verify there are no stigmata of rose midge.

Yes it looks healthy. Maybe it’s delayed because it had to start from scratch (from the ground), and you are up north. I’ve never grown it.

I went to HMF to confirm it was a Kordes. There, I saw a photo from a member in Alberta whose Rugelda died to ground in winter, but was (on June 24) 18 inches tall and had not yet bloomed; photo looked like buds might develop soon, just like yours.

Hope that helps.

Thanks for your feed back. other roses which died back to ground are now blooming except Rugelda. i have the feeling that it is a late bloomer and by the time it sarts her first flush , Japanese beetles are here ! 😂