It's rated to zone 5, so I don't think that's the problem.

The mystery monster is done with its flush of blooms. It looks identical to others growing in the wild here. They are climbing trees and everything. Some are over 12' tall here in zone 6a with no care whatsoever! I even cut branches to compare them. I am digging it out asap. It was 95'F today and should reach 97'F tomorrow. It was too hot to do anything except deadhead today. Luckily, it should rain and cool off by this weekend.

I looked up multiflora. It isn't "Evergreen Multiflora' ie Lady Banks hardy to zone 6b. Floral form is different.
http://www.helpmefind.com/rose...

It could be plain rosa multiflora - why this was on page 2 of the search, eludes me.
http://www.helpmefind.com/rose...

I don't have room for this monster in the garden. I would have to either escalpier it against the back shady fence under the black walnut tree or cut it back severely and keep it in a pot. I would love to plant it in one particular corner, but that is technically my neighbor's spot. I was going to suggest putting it in the corner to prevent intruders sneaking thru the fence. I hate to kill a rose on purpose.

My friend adopted the "mystery rose". I also found a baby one in a wintersowing container. I put the baby in a bigger pot. I haven't decided what to do with it, assuming it survives the winter outside.

Everyone calls it "wild rose". Multiflora is my best guess for its identity to date.

In Chico CA everything grows but the summers are extremely hot. Nothing dies, but the flowers get very small after a few 100 plus days. I have several that can really keep blooming and maintain a decent size-Livin' Easy-against a hot south wall with sun all day, Distant Drums, L.D Braithwaite and Europeana. Some of the others get a little afternoon shade break.

This year I took out four Legends that got some afternoon shade. They were so hyped in our area I thought they were going to be great. They bloomed reasonably often with no bluing and grew huge and healthy. But they were sort of atomic monsters. After three years the canes were 2" around and showing their bare thighs. Not pretty plants for standalones and a bloom in a vase faded instantly. This week I replaced them with two Papa Meillands, a Kardinal and an Amalia. The Meilland and Kordes roses seem to do well in this climate. We'll see about Cinnamon Dolce.

That's funny about Livin' Easy because I had one growing in the shade for years and years, and it always bloomed reliably. I guess it's just an easygoing rose.

That's good to know about Livin' Easy. It is a winner. I never know what roses to plant with some shade. Just dug up two Oklahomas and put them in full sun since they got a little spindly. Now i have two gaping holes that I would like to fill with some red. Those spaces get sun all winter but about only two hours sun once the trees leaf out. Any thoughts? OGR's could also work.

Also i am prepared to get a few surprises this year since I ordered three band size OGR's-Tipsy Imperial Concubine, General Gallieni and Archduke Charles. These are my first un-moderns. They are in pots until they get garden worthy size.

Hybrid musks do well in the shade. Skyrocket (aka Wilhelm) is a nice red one.

Rose (Rosa 'Skyrocket')

I have to say 'Easy Does It' is the best rose I've ever seen. It blooms nonstop from Spring to Frost. I planted two of them. One was bare root and the other a potted plant. Both were the best two roses I've ever seen and they got better the second year. If all roses grew like it, everyone would grow them. I think it blooms more than the Knockout roses too!

People in our local rose group agree with you, Clint. 'Easy Does It' performed well in our extreme climate in the worst summer ever. Super tough and pretty!