I bought a large Illumination pink late last last summer and carefully planted it in a carefully chosen spot but it failed to survive the winter. Just next door to it an orchid flowered foxglove not only survived but is still flowering in mid July. I have just sourced another Illumination and I notice that it says on the label that it will survive a few degrees of frost but may need some protection in severe weather. Am I just unlucky or has anyone else had a winter casualty...and what would be the best way of protecting it I wonder....does it really need a cloche ....in Hertfordshire??