A very dodgy Daphne

[carosanto]

Hi All

During the recent very hot weather, despite loads of watering, my Daphne has gone very very sick on me.  All the leaves have yellowed and are drooping badly.  Is this the end for Daphne?  Or should I cut her to the ground (she is about 2 feet high) and hope for a new start.  She is spoilng the look of my otherwise great border and has never been really happy I think.  Perhaps I should dig her up and banish her to the compost heap?  Any help would be much appreciated.

Carosanto

[carosanto]

[John85]

Is it a D.mezereum??