Devon,
United Kingdom 
When and how much should I prune Hydrangea Petiolaris? It's a fabulous climbing plant and flowers beautifully but it grows outward more every year and is now coming out a bit too far.
18 Oct, 2011
Answers
Thanks Xela. Do I also trim back the stems with the previous year's flowers?
18 Oct, 2011
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« One last question about geranium maderense. Can it be grown in a largish pot
Remove unwanted stems in January, Merlinbabydog. I keep mine within bounds by cutting back at that time every year and it bounces back well. I would expect a well established plant to respond well to being 'tamed'.
18 Oct, 2011