Here is a guide and information on pruning climbing roses.
However,please remember that, most climbing roses and rambling roses, need two or three years to build up enough top growth to produce flowers.
During that time, they need little or no pruning.
The most important thing to know about pruning climbers is, which canes to prune and which canes NOT to prune.
Climbing Rose bushes should not have their main long arching canes pruned for two or three years.
And then those long main canes should only be cut back a foot or so. That's all.
If you cut back the long canes too much, the climber will not flower well.
Because it now has to divert energy to growing back the long canes again, leaving little energy for flower production.
They need time to build long flowering canes, that will produce lateral shorter side shoots which are the real flower producing stems.
Another reason is, if you prune back the long canes, it will alter the look and careful training of the climber.
However, if you have an older climbing rose that is not producing as many blooms as it used to, it's time to take action.
Take a pruning saw and remove one or two of the oldest canes that are not producing, or maybe dying off, at the base.
This will stimulate the climber to grow other long canes that will flower a lot.
The picture above is a perfect example of a well trained climber. This climbing New Dawn, is my favorite.
Pruning climbing roses can be handled here by cutting back the lateral shoots that grow from the main canes.
Trim main canes only if they overgrow their space, then cut back the side shoots, the lateral shoots, from these main canes to about 2-3 inches.
But never cut the long main canes back drastically.
If you have an once-blooming climber, only prune right AFTER flowering in summer.
Prune repeat flowering climbers during the dormant season.
It is very important to know when to prune these once- flowering climbing roses. It should only be done right after the flowering flush is over.
Because these roses mostly bloom on old wood, so if you prune them in spring, you would have no flowers for that season.
These climbing rambling rose bushes can be quite vigorous and spreading. Remove about 1/4 of the older wood after the plants flowering period is over.
Prune the remaining canes as necessary for size and shape, and trim the remaining lateral canes back to 2 or 3 buds.
Deadhead (remove spent flowers) these rose plants regularly to encourage re-flowering.
In late winter, or early spring, cut back at the base some a few of the oldest long canes that aren'r producinf that well any more, and trim the remaining canes to control the size and to give it the shape you want, but not too much.
Then prune the lateral rose shoots back to about 2 or 3 inches.
If you remember and follow these easy steps for pruning climbing roses, you will have beautiful looking climbing roses with lots of blooms.
The long reach rose pruners below, are the ones I personally use.
I have tried a lot of rose pruning tools, and these long handle pruners I can't be without.
They make your rose pruning easy and pleasant, with less scratches and cuts from the rose thorns.
Your can purchase a decent pair of these ARS Rose Pruners at most garden local garden centers, or have them delivered by ordering ARS Rose Pruners online.
Here is a video to watch that is very good. Just click on it for a tutorial about pruning climbers.