I just planted a Rozanne last fall and also hoping it is still going to break through.
I have 3 new Splish Splash and a Johnson's Blue that are all up.

Raney

I knew nothing about Rozanne last spring when I bought two flats of gallon pots for $1.25 Canadian, each. Those plants tripled in size in a month and flowered themselves silly till October.

Since it works so hard in the fall, maybe it is a slow starter in the spring?

Well I am glad I am not the only one waiting...that is hopefully a good sign! I have other geraniums up as well but not Rozanne. It really is a great plant...

Not in your zone, and don't have Rozanne, but all my geraniums are slow to start.

Rozanne is slow to appear. I have one just starting to break ground.

My Rozanne is just starting to emerge - I had to do some poking into the centre of the plant to see it (I didn't clean up at the end of last season, thought I'd leave the plant alone to give it a bit of a blanket for winter). I just noticed it emerging last night, but it is emerging at about the same pace as my Johnson's Blues, they are just starting as well. Definitley slow when compared to the other varieties I have (magnificum, onaxium, sanguineum, biokova).

tess

Another piece of experience : last year, after my first Rozanne's first winter, I worried just the way you do, Kad2...and finally, with tears in my eyes..bought a new Rozanne at a plant's fair by mid-April...a few days later...naturally..the original Rozanne did show up ! ;o)
This year, both of them started fairly early (mid-march)..go figure..
Maybe they just like not to be alone????
Zephirine

I am in a warmer zone, just saw my first Rozanne flower yesterday, which was three weeks after all of my lavender bloomed. Rozanne doesn't seem to like my adobe soil and I am hoping they grow bigger this year.
Diana