As long as there is space it should be fine for air flow. My only question is whether that's enough room for the rose to grow in. You may have to keep that side pruned way back and then your tree will be lopsided.

What's your growing zone? In zone 5,6 even 7, grafted rose trees won't survive winter in the garden.

My growing zone is 6a. Summersrhythm, I am also concerned about the rose in the winter. I was thinking of burying it over the winter months but my concern then is putting stress on the plant by constantly uprooting it each year. I was also thinking of loosely wrapping a wire barrier around the cane, filling it with mulch, then wrapping the whole tree in bendable styrofoam and burlap. I have no idea if this would actually work.

Jackie, thank you for your pictures :) I'm excited to see how quickly the standards grow with proper care. I can plant it a bit farther away but I was hoping to keep it in a bed so if I needed to bury it over the winter I could, easily. Here's some pictures of my 'plan'. If it's best for the tree I'll move it elsewhere.

I'm in zone 6 and I keep my standards in pots. They get wrapped in burlap and stored inside my shed for winter. An insulated but unheated garage works best though. Find a really nice big pot and put it in that. You can still put the pot in that bed for the summer but you'll be able to turn it from time to time to keep the growth more even and it will be easier to winter over.

Thank you, seil for your suggestions! Unfortunately I do not have a shed or a garage though :(