I would suggest that nature will provide most of the care your roses are likely to need. That said, here are some easy tips.
1) Be sure they get adequate water; about 1" per week is what's usually recommended. For water conservation, most people will recommend drip irrigation. I like to inspect my roses and so I water with a hose.
2) Feed them once or twice per year with an organic fertilizer such as Mills Magic.
3) Remove dead wood at least once per year. I happen to like Felco pruning shears for this, too.
4) You may choose to prune up to 2/3 of the cane mass away when the roses are growing least. In wintry areas this is before the roses set new spring foliage; where you are, that might be before it starts raining in the fall. Pruning encourages growth and blooming, but it saps a great deal of energy, so you need to fertilize more generously. I typically prune every three years or so.
5) Keep your roses mulched with 1-2 inches of organic mulch.
A more detailed account of caring for roses can be found at
RoseFile or at
AARS . Just as with people, the generalities are all the same for all but the specifics on rose care need to be tailored to the individuals. Some roses are easy-care and some are high maintenance. I have yet to see a book that does a great job getting past the generalities.
My bet is that for some time there will be helpful people here eager to answer your questions about rose care.
