Al
There are lots of roses worth planting in a shady spot. I have
Maiden's Blush and it is 1,8 meters with out any suport and flowers 6-
7 weeks very summer. Albas are usually very healthy roses with minimum
of care and there are many of them. An organic fertilizer once in
spring is enough.

If there are room for roses climbing up the pine trees you can check
out Bleu Magenta. Is is a large once blooming climer and will grow and
flower fine if given a slow releas fertlizer in spring.