I wouldn;t recommend it - roses like to put down two or three very large woody roots, and they can't do that in pots. Even rose bushes don't do well for long in pots.

Miniature climbers might work in a 40 liter or bigger tub. Some of the slower David Austin climbers might also work.

Ok Thanks - might have to think again...

The smaller clematis varieties like The President or Niobe will do quite well in an 18 inch/2 feet deep pot.

Amsterdam, I have two in large planters, Miniature climbing rose ‘Warm Welcome’ and compact rambler ‘Rambling Rosie’. They need a lot of feed and water, but are both doing very well. :)

May I ask how large your planters are or maybe send me a photo? Thank you.

No problem! Cant send photo in pm, so will put them on my photos for you.

Thank you, I had a look and it was very helpful. 👍🏻

You’re welcome!