Thank you for all the input! I did throw a gallon of water in the bottom of the holes, & noticed that it took right about an hour to seep through, and I'd heard/read that roses don't like "wet feet", so I added the gravel. The top-soil where I am was imported several generations ago (just after the dust-bowl[?]), and I used the gardening/potting (generic "Scott's" bag-o-soil for $2.99 at the outlet), and I'm not certain that it's any more nutritious, but it's got to be better than what looks like desert to me, as the dirt around here doesn't look like it's got enough of anything in it to grow much of anything that isn't brown & thorny. The whole yard will be a challenge, but I really wanted my yellow & peace roses now, though having just bought a house, I've been cutting a lot of extras, so I got it done on the cheap. That's me, champagne taste on a beer budget, & all
I have the roses all planted where they will get about 12 hours of sun, from morning until about 6pm. I'm worried that the summer heat might cook them, but I'm hoping that with regular watering, they'll take advantage of the rays.
I know there's a lot of info out there, and I appreciate all the input from y'all on this forum. As I learn, I'll strive to do all that I can for the best possible results. This includes harvesting from the experiences from you wonderful folks as well, and I thank you all for sharing. Cotton