Traffic Light Hardiness Rating
We use three different coloured labels to give you an instant indication of a plant’s frost hardiness. These are outlined below, but please note that they are a rough guide only. We are always on hand to offer advice on individual specimens.
If you are in any doubt at all about the requirement of the plants indicated with the traffic light system please do not hesitate to call us or contact us here:
Hardy anywhere in Britain below approximately 1000ft (300m).
Hardy in the Home Counties if sensibly sited (avoiding severe frost pockets, for example).
Hardy in Cornwall, South West, Atlantic coastline gardens, The Channel Islands, gardens in Central London and other large cities and conservatories.