Heirloom Roses claims Portrait to be a zone 3? Which is correct - 3 or 6?

Portrait was the rose that sparked my life-long interest in roses when, as a 10-year-old, I read an article in the August 1972 National Geographic about Carl Meyer, the Cincinnati pipe-fitter who became the first amateur rose breeder to win the All America Rose Selection from the American Rose Society.

One of the illustrations was of the family tree of Portrait, showing, as I recall, 64 ancestors. The article went into great detail about the hundreds of crosses Meyer performed before achieving Portrait. It was fascinating and the result was exquisite.

Here is a link to a photograph from that article: http://www.natgeocreative.com/photography/1016624.

Here’s a link to a news story reporting on Meyer’s achievement: https://news.google.com/newspapers?nid=364&dat=19720524&id=5JQEAAAAIBAJ&sjid=rjADAAAAIBAJ&pg=2313,2196244&hl=en.

It’s a shame no one is carrying this rose anymore and hardly anyone is raising it in their gardens.

Update: April 16, 2020--I just ordered it from Heirloom Roses. They said fewer than 10 were left.

An update? Over 2 years since my last comment, needing to pare down my "project" due to space and cutting them all down and back for spring and I just HAVE to again give this one some love. Not sure if it is the VARIETY or just my specific plant, but mine is now 6 years old, bought from HORTICO who got it RIGHT (lol) and there is no way I am giving this one away to one of my, now, satellite gardens (friends and sister)! Growing in pots and wintering in the garage, yes: MANY ARE AGING OUT at 6 or 10......Fragrant Plum, for example, has refused even with epsom salts to throw ONE basal in 3 years................here in Ohio, every disease other than rust is pervasive, every insect "loves" us...............cutting PLUM down today I have nothing to work with! It looks like a gnarled grapevine and some borror ate whatever "good" wood through and through and the fact that "good" wood was an inch thick in a few places means WORSE...............PORTRAIT! IT WAS A JOY! It throws basals endlessly, call it the "Madonna" of roses? Endlessly reinventing itself! I had no less than 9 FRESH yet nicely aged canes to choose from and yes, 2 or 3 also had been bored through............didn't matter..............this is simply a GREAT rose? It will not rock anyone's world, it never did............and to THAT it is pretty much outdated/irrelevant/always was.....................but such a "good" rose, such a "happy" plant...................even amongst us who grow the bands and shop retro it seems this one STILL cannot "chart" on the ironic flip side...............and it really should! "The FIRST AARS created by an amateur" !!!!!!!!!!

Never grew this until 2008 when I got it as a sub when Bobby Charlton was sold out and happy am I to report that I got to experience it at long last! It is a very, very GOOD rose, although probably not exceptional in any manner, just SOLID. Lots of blooms, above average fragrance, better than average disease resistance. As the picture here shows, it DOES do that "color change" in the sun that, for the most part, did not exist in pink hybrid teas prior but became the "rage" of the 70's with the release of Spellbinder and Color Magic a few years later and I am supposing the fact that it is so GOOD + 40 years ago seemed "a little unique" is why this solid yet middle of the road rose scored the AARS award. You certainly could do a lot worse if you are looking for a heavy blooming, fragrant, rather tall pink. It looks really nice planted next to its mother, Pink Parfait----similar growth habit, always in bloom.