Even the easiest will never reach their potential, however, unless the soil is right. Good soil makes good roses. Bad soil makes bad roses. When you plant your new roses, you may be able to avoid future problems by first improving the texture of the soil.
Good soil drains well and can hold the oxygen and nutrients essential to growth.
You can improve hard clay or poor sand by working plenty of organic matter into the ground. Use compost, or buy a soil amendment to work into the bed. Nutrients crucial Roses, especially modern hybrid teas, demand plenty of water and nutrients. This will help them develop strong stems and healthy foliage that will better withstand inevitable leaf diseases such as black spot and mildew, or attacks from insects such as aphids and mites. Healthy foliage doesn't prevent disease, but it will recover better than foliage on a weak plant.