Salvia candelabrum has an Award of Garden Merit with a hardiness rating H3/4. We planted several plants on the AGM bed in Sheffield Botanic Gardens about three years ago. Most of these were lost to hard frosts but one remaining plant had grown large and by early June was flowering profusely and looking spectacular. Two weeks later it had shrivelled up and died. When removed there were no obvious reasons for its demise - no vine weevil -good root system. Interestingly some of the young plants in the nursery also showed similar symptoms a few days later. Could it be a fungal infection ? Has anyone had a similar experience ? An AGM ought to be a sign of a plant which gives few problems so maybe this is something new ? Any suggestions, please. (We never experienced any problems in the wetter conditions at Kerrachar).
