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.

Green label:
These plants are hardy anywhere in the UK below approximately 1,000ft (300m).

Amber label:
Plants that are hardy in the Home Counties if sensibly sited. Many of our amber-labeled plants are grown using cuttings from well established plants that have survived many a harsh winter in South East England.

Red label:
These plants are hardy in Atlantic coastline gardens, the Channel Islands and gardens in Central London and other large cities.

A note:
The commonly held belief that it's better to 'plant small' is true of herbaceous plants, but not necessarily true of woody plants. They need some wood on them to survive severe cold, so plants of marginal hardiness in very cold areas should really be planted larger rather than smaller, if possible.

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