Lavender not flowering

My healthy well established lavender has not flowered for the last 2 years. It has plenty of growth and pruned as normal. Any ideas anyone?
0
My healthy well established lavender has not flowered for the last 2 years. It has plenty of growth and pruned as normal. Any ideas anyone?
Posts
When and how do you prune it?
"We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw
Grajean, I lost my lavender last year due to rosemary beetles, they are shiney bottle green iridescent with faint deep red stripes lengthways. They chomp off the tops off the stems!
strange thing was, none on my Rosemary! 
Last edited: 20 June 2016 18:58:32