In May, I went to the “home center” (Nakano Shimachu) and bought the most expensive rose (about US$ 30). It’s name is L’Espoir, or Hope. It scores a perfect 5 in every attribute: grows well in pots, size of flower, scent, bloom frequency, and ease of growing. It’s also dedicated to the Tohoku March 11, 2011 earthquake and tsunami disaster.
I am generally skeptical of industrial gardening, but I gave Hope a try. It turned out great on the 10th floor balcony. It may not have grown that tall, but it required no pesticide and bloomed often. I love the scent. To me, scent is essential in roses.