When can I cut my hebe, in a pot, back?
By Beagle_mum5
Oxfordshire,
United Kingdom 
Not sure which one it is, but it's stopped flowering, and the leaves are looking brown. I re-potted it in the spring and have fed it since, and the last flowering was the best it has ever had. Its always been "woody", I've never cut it back since i've had it, more than 6 years, and it sits out the front in full sun.
5 Jul, 2009
Answers
If it's very woody, I would take some cuttings, before cutting back, wait to see if your cuttings have taken, then go for it, cut the Hebe right back, I shall cut mine back very hard, but not untill the backend of the year, mine flowers twice a year.
I usually give mine a good cut every two years, and it always comes back, but I don't think it's as woody as yours sounds.
Gail. x
5 Jul, 2009
Cut then back in stages to give it less of a shock!
6 Jul, 2009
Trim them back into the green wood now thats its finished flowering. It will look a bit unsightly and trimmed but will fill out again.
After flowering is the best time to prune to shape and thicken the plant. Remove a few inches on small varieties and 6 to 10 inches on the larger ones. The pruned material makes good cuttings.
If a bush becomes overgrown, it is preferable to spread the cutting back over several months than to cut back all growths at one time. Cut to a bud that is growing further down the stem rather than hack it off anywhere!.
5 Jul, 2009