On Sat, 4 Oct 2003, "Tim Tompkins" wrote:

As a rule of thumb, climbers bloom on 'last years wood'.
If you removed a lot of the canes it is not going to bloom until next year.

This applies to once-blooming roses, regardless of whether they are
climbers or shrubs. Remontant climbers benefit from a light pruning in
spring prior to the onset of active growth. Once-bloomers should be lightly
pruned immediately after flowering. I wouldn't "remove a lot of canes" on
any rose.

Mike