@SolisGardenWife ....
Welcome to NGA ...
Your wilting roses are not in trouble. Newly planted or newly transplanted roses need time to get established. By that, I mean that there is no way you can plant a rose without damaging the root system. Therefore, the root system is usually inefficient until the rose grows new roots.
Roses grow their roots first, so they will put most of their plant energy into root growth. The existing roots cannot transport enough moisture to the top growth. You should be watering your roses daily until you see new top growth because they do not have a fully developed root system.
You should continue the daily watering until you see new top growth. That growth tells you the rose has grown enough roots to support new growth and is ready to grow. Then you can water your roses once or twice a week, depending on your climate and soil.
You want to train the anchor roots to go down deep because these roots also perform a major function of pumping up moisture to the top growth. The way you train them, is to give your roses deep waterings at least once a week. The roots will follow the water.
You cannot over water a rose that has good drainage.
If you live in a part of California where you have high summer temps during the day, but nights cool off, you may see the wilting behavior for two or three years. A rose is considered to be a juvenile plant until it is about three years old. It varies because everything always depends on the rose ..
The roses wilt because the transpiration rate .. loss of moisture through the leaves ... is higher than the plant can send moisture up to the top growth. With the cooler temps at night, the rose has a chance to rehydrate.
@luis_pr .... wetting the leaves of a rose does not always promote black spot. It depends on your climate. If you are gardening in a dry climate, washing down the rose during the hottest part of the day is quite beneficial to the rose. Roses do absorb moisture through their leaves. Also, this practice inhibits spider mite infestations.
If you live in a more humid climate, you are wise not to use overhead watering. If the foliage has time to dry off within six hours, overhead watering should not be a problem.
@SolisGardenWife ... you said the soil was definitely wet ... Did you perk test your rose holes before planting ? Good drainage is a
MUST for all roses .. except for the Swamp Rose. If your soil stays too wet, the roots will rot.
I hope this info helps.