I'm in San Antonio. If it is Flower Carpet, I planted mine in full sun and it quickly died. (Pink) I bought mine last year, around this time for $5.00. (So I bought 3)

I kept looking at local rose society webpages and the Texas recommended roses and couldn't find any mention of them at all.

Then, I found a webpage from a university in Alabama. It did a study of numerous new roses. Flower Carpet was one of them.

The study concluded that they could not tolerate Alabama's heat.

However, I swear that I see them growing around here and they look beautiful!!!

I kept the remaining Flower Carpets in pots. And out of the sun. This spring, one finally started blooming. It was in full shade!!!!

If I finally get around to planting them in the ground, I'm going to put them in no more than part shade and I'm going to wait until the fall.

Knock Out has a nice red. I planted one this Feb and it's doing wonderfully.

I know that a lot of roses are on sale right now.

Other people on the forum might have experience planting roses in late May.

I have found that my new roses in general wanted a bit of shade. I quickly accomplished this by planting a Vitex near then and also my Fall Asters are bushy enough to shade them. I planted both the Vitex and Asters in early April. Both are drought tolerant.

I can always take the Vitex out at the end of the summer. They can be moved easily. I'm calling it my "annual" tree.