Cheshire, United Kingdom

I had an old rose next to a viburnum & it was leaning on it. I also noticed winter jasmine had entangled it so I cut it all away. The rose is free & leans in a new position. I have now cut away dead wood. The rose is probably 40 yrs old & south facing by our bay window.
Its a red/yellow bicolour tea rose & gets a lot of sun & the soil is very dry. It is about 4 ft 6. Flowers all year long so not sure about pruning.
Another rose is nearby next to a fuchsia this one is fragrant deep red & very thorny. Now 6 ft high in part but impossible to get to. No dead wood & all year fragrant flowers, Also great from the window. East facing on the border.
There is now a bare patch of soil in the border between the roses. Previous plants have jumped ship into the gravel. I had siberian iris growing there but after I split them & gave some away they died. The soil is very dry & poor about 3ft x 3ft. osteospermum & marjoram have vacated into the gravel & a single astailbe & purple Japanese anenomies grow the other side.
Any plant ideas for the gap welcome. Rose tips on these 2 old warriors too. Thanks

• 22 May, 2020