Posted: 02/07/2016 at 18:40
Young roses sometimes have thin stems that take a year or two to stiffen up. Other roses are meant to be more informal in appearance, and the branches are supposed to bend a little. Do you have any idea how yours should be?
There's no need to remove buds unless you think the branch is going to break or be damaged; if you do have to, take the whole bunch of buds off back to a leaf junction. If you remove just a few buds from a group, you'll channel the energy into the remaining ones and probably make the flowers even larger.
Rather than cutting off buds, have you considered constructing a temporary frame around your rose to stop it splaying out and offer some support?
A final point is that if you have planted te rose in a mixture of a fibrous compost and well-rotted manure, you might want to think about changing that next spring - roses are better inb a heavier compost such as a mixture of John Innes 2 or 3 and a fibrous compost if you intend keeping them in a tub for long.