Cool How To Prepare A Rose Garden References. Web planting a formal rose garden. Roses require at least an inch (2.5 cm.) of water weekly throughout their growing season, beginning in spring or following spring planting.

While overhead watering is suitable before the onset of new growth, it is often better to water. In poorly drained or heavy clay soil, plant your rose in a mound or raised bed. While they might take some work, the result will be 100% worth it.