Of I didn’t realize how blurry that picture was. When you post outside your phone looks a lot better.

But anyway I had somebody else look and they concurred it is crown gall. Sad, and it makes me wonder if it came with it from RVR since I grow almost all my roses in containers, none else look to have gall and this ‘Charles de Gaulle’ lived in one container his entire life with new potting soil.

Well, I think the crown gall has spread in the garden, which makes me very sad. All of them are in containers, but the container for this rose was next to another that has performed poorly. It's a first year baby rose so I assumed it could just be a slow grower, but it had two great flushes with a basal break and then no new growth since May. I dug it up and it looks very suspicious.

I thought I may accidentally break off a piece of "whatever" it is as I was pushing away the dirt, but it's very woody/hard so at first I was relieved thinking it must not be gall. It's also in the shape of the original band--very square like. But as I looked at the pictures more--it just doesn't look right.

I don't know how crown gall can cross over if it is in a pot since it usually travels through the soil.

Did your roses all come from the same place ?

If you have a rose with crown gall in a pot next to another one without it, it's easy for the bacterium to splash over into the neighbor pot when you water.

@Kristine LeGault 8a pnw they arent from the same place. The original culprit came from RVR but its neigbor was from Heirloom..

Since this is a rooftop balcony my thinking is that the persistent and sometimes strong winds could've easily swept some infected soil, or as @susan9santabarbara said some errant water splashed.

Its weird because this rose (Tahitian Sunset) did so well until one day it simply stopped doing anything—not a single sign of growth in months. But given how hard and woody the growth felt, and its shape is almost square (like a small container Heirloom may use for rooting) I dismissed the poor performance as just a slow own root grower and the growth as some sort of callous. But the pictures look way more gall like sadly.