As with other roses, most shrubs need sun a good six hours a day. (In the South, they like filtered sun for the hottest part of the afternoon.)
Plant in well-drained soil full of organic matter. A pH between 6.0 and 7.0 is best. Plant roses far enough apart to promote good air circulation. Water young roses well and evenly until established, then water about an inch per week. Lay down two to four inches of organic mulch to save water, keep roots cooler, and help prevent soil-borne disease spores from splashing onto leaves. Water at the ground level; don't get leaves wet, especially late in the day.
Prune only branches that are dead, weak, or rubbing other branches. (It took me under half an hour to prune 30 shrub roses early last winter.) Don't overfeed. A balanced timed-release formula should be enough if your soil has ample organic matter. After hard frost in winter, mound soil over crowns and mulch well.