Inside/outside also depends on the growth habit of your rose and how flexible the stems are. I have a Warm Welcome planted inside an obelisk as I read that is what you are meant to do with roses.
I tried cutting it back last year to retrain it better using the winding around the outside technique as it all wanted to grow up the inside and I hadn’t really made much effort to train it originally. It flowered pretty well anyway, so I should have left it ‘pillar’ style as the new canes were too stiff and refused to be teased out and wound around. So all I achieved was to set back the growth, as now it’s only half the height of last year!
Mountainous Northern Catalunya, Spain. Hot summers, cold winters.
Well i ended up buying a 8Ft Traditional Obelisk by GAP Garden Products. I just could not afford some of the ones in the link and i needed 3 Obelisks. They are £60.99 inc postage from Amazon.
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I tried cutting it back last year to retrain it better using the winding around the outside technique as it all wanted to grow up the inside and I hadn’t really made much effort to train it originally. It flowered pretty well anyway, so I should have left it ‘pillar’ style as the new canes were too stiff and refused to be teased out and wound around. So all I achieved was to set back the growth, as now it’s only half the height of last year!