Rose - is this likely to be a sucker?

[WobblyLondoner]

I’ve a Gertrude Jekyll rose which is around 8 years old. Last year I built a raised bed next to it, and I’ve just spotted a rose growing through it - about 3 feet from the original plant. I’ve realised too that another clump of stems has come up between the original roses and the one in the raised bed - this probably happened a few years ago.

Are they most likely to be suckers from below the graft of the GJ and so need to be dug out? The thing that is confusing me is that what I’ve read says that the suckers will look very different to the main plant, but mine look very similar (though more advanced in their growth).

Any thoughts welcome! The image where you can see the fence is the original rose; the other is the new growth in the raised bed.

The one on the right is almost certainly a sucker - you see it has 3 pairs of leaflets per leaf rather than 2?

Ah thank you - you are right. I’ve realised that I’ve let several suckers develop over the years - that sounds like next weekend’s major job!

“Looks very different “ has to be understood in the context that both rose and rootstock are still roses.

Yes! This is where I clearly went wrong! Thanks again.