How to Grow Roses in Pots and Containers
Roses grow well in pots if you use a large container (at least 15-18 inches wide) with drainage holes, a quality potting mix, full sun, and consistent water and feeding. Compact and miniature roses are the easiest in containers.
Almost any rose can be grown in a container, but compact types — miniatures, patio roses, and shorter shrubs like the Drift and Knock Out series — are the most reliable. Choose a pot at least fifteen to eighteen inches across with generous drainage holes, and fill it with a good soil-based potting mix rather than garden soil.
Container roses depend entirely on you for water and nutrients. Check the soil daily in summer and water whenever the top inch is dry; feed regularly through the season since frequent watering flushes nutrients out. In cold regions, protect the roots over winter, because a potted rose is far more exposed to cold than one in the ground.