Planting more trees — in places where the terrific views from Calton Hill will not be obstructed — could add to the beauty of the hill, at the same time as improving wildlife habitats.
The following is a list of eight native tree species, suitable for planting, that can flourish on the hill and benefit biodiversity:
Crab apple (Malus sylvestris), Elder (Sambucus nigra), Goat willow (Salix caprea), Hawthorn (Crataegus monogyna), Holly (Ilex aquifolium), Rowan (Sorbus aucuparia), Silver birch (Betula pendula), Wild cherry (Prunus avium).
These are ‘pioneer’ species, hardy trees that can thrive in exposed locations such as Calton Hill. In addition there are three further species that we think would be good for specially chosen locations:
Alder (Alnus glutinosa) on damper ground, pedunculate oak (Quercus robur) in deeper soil, and wych elm (Ulmus glabra).
We sincerely hope that any organisations planning to plant trees on the hill will consider following our recommendation to use these species.
*Many thanks to our botanical/forestry experts for their valuable advice in preparing this guideline.
SCMH, 7 January 2024