My Belinda's Dream has stayed small, so I wouldn't recommend it for a hedge. I am in a different zone and climate, so it may do better in Texas. I moved it this year and found the own root plant was 3 plants close together, so I separated them. They are still alive and sending out new leaves, so I hope they do better next year.
Golden Celebration, an Austin, gets more black spot than any other rose I grow. Admittedly, as a new gardener with limited space, I don't grow many, yet. Julia Child looks promising, but it may be too small for a hedge. Have you considered Radler's Carefree Celebration? It is a peach/coral rose that is blooming nonstop for me. I got a tiny bit of black spot on the lowest leaves - less than most other roses in the same weather, but still a tiny bit of black spot. The most disease free rose for me is Fire Meilland, a ground cover rose. It is not suitable for a hedge, of course, but may work elsewhere. I am impressed with a ground cover rose that doesn't get black spot in my non spray garden bed by the strawberries. (Most roses are in the other sprayed bed).
Love the front yard photo!
