Hi, Over the past year or two, my lavenders had started to look terrible. The problem might have started when I pruned my lavender for the first time since being planted back in 2001 or 2002. Now, the woody centers of the plants are exposed. Please see pictures. From what I've read on the internet, my lavender might be dying. But, the outer branches looked healthy. What can I do to save my lavender?

Here is a link that might be useful: pictures of lavender