Have I killed my Aubrietia plants
I planted two Aubrieta plants in a new rockery bed last Autumn. They flowered really well in early spring but were out growing the bed slightly and they became very top heavy. I read online that you can cut them back relatively hard to maintain the size and stop them taking over the bed, so I did. They were thriving, but it has been over a month now and no new growth plus alot of the stems are really brittle and dry. Though the leaves that I left remaining are still green so I'm slightly confused. If anyone has any imput I'd really appreciate it, thanks.