I have a climbing "Blaze" rose which was planted from a pot in the spring of 1999 or 2000. It has 2 main canes about the thickness of my little
finger and approximately 8-10 feet tall. There are are only a few small spriggly branches coming from the top, and they are about a foot long each.

The few blooms it had last year came only from the top. The canes seem heallthy, dark green. The weather here now in Hopkinsville (we are in SW
KY on the TN line) is warm this January, but I know more frost is coming.

When and how can I prune this bush for more blooms? The first year it did very well.

A climbing rose generally does not need to be pruned other than for shape and to get rid of any dead and spindly branches.