Need advice for pruning Dublin Bay rose
Hello everyone - I hope someone can give me some pruning advice for my Dublin Bay roses since it's getting to be almost that time of the year.
This picture was taken last October. The roses were planted 3 years ago last fall and last summer they reached the top of the trellis. I bought them at the Antique Rose Emporium - they were categorized as columnar roses that get to be about 8-10 feet tall.
I'm pretty comfortable pruning shrub roses, but these are my only trellised roses and I'm not sure what I'm doing. Most things I read advise to bring in the canes and tie them to the structure. Seems like as soon as I do that, there is another one that shoots almost 90 degrees out. A friend recommended taking about 2-3 feet off the tops to encourage it to grow in more at the bottom.
I appreciate any advice you can offer. I know roses are fairly forgiving, but I'd hate to set this one back any - I really love the flowers.
Thanks - Lisa