Your rose looks great for being in a pot. If you want her to climb I would not prune her much at all. Normally I just remove the super thin thin canes that make them look like spiders (the blooming laterals) if at all. Definitely would not touch any of the long and thicker growing canes yet. So maybe prine that thin tertiary stems. personally i would not prune her at all yet. I have never grown a climber in a pot like that so I hope others with more experience can advise you better.

It's pretty hard to do any permanent damage when pruning a rose. I have cut back climbers to almost ground level and they have just come back all the more stronger for it.

Having said that, I would not recommend growing a climber in a container unless a very generously sized one.....like a half whiskey barrel. Plants that grow significant topgrowth - like climbing roses - also generate significantly large root systems. A too small container will adversely affect growth and flowering.

Here's what I'd do:

• remove all but the 5 (or so) largest and most robust canes. Get rid of everything else.
• head back the remaining canes to a manageable height
• repot into an appropriately sized container with the proper soil media. Since the plant is growing in a container in potting mix, routine fertilizing for best performance is necessary. Weekly, weakly with a full range water soluble liquid fertilizer. Or use a slow release product like Osmocote after repotting.
• provide some sort of support for the climber. Unless those major canes are trained more or less horizontally, the flowering laterals will not develop properly. No laterals = no (or very few) flowers.

Finally, it is important to remember that growing any plant in a container is vastly different from growing that same plant in the ground and different principles/methods need to be applied to expect the same level of success.

Could you find a different material to tie it in? The green plastic isn’t doing it any favours imo. Perhaps natural sisal or jute.

Agreed with gardengal, remove the weak ones to get some air flowing. Are you planning for her to climb the wall? If you want blooms you still need to get the canes horizontally, otherwise it will only produce blooms on top. Start training the canes horizontally on the wall for more blooms. Also fertilizing it’s essential for pot roses

You can also try looping the canes around

Photos from instagram

LOVE niff_barnes’ work!

@dianela7analabama right? I'm so inspired by his work! I have been swirling all my roses around lol

Here is my climbers in trainning

Ceres yes I love her work. She is such an incredibly talented person.

I like her idea. Too bad I can't train my New Dawn, Veilchenblau or Quicksilver like that. Maybe Renae or Aptos....

Wow, @CeresMer Zone 7a NJ I didn't know Niff Barnes' work, that is really amazing! I love how her "rose sculptures" keep the roses interesting even in the dead of winter. Wonderful, thank you for sharing!

And congratulations on your own climber training, those are looking great!