The Use of Limestone in Horticulture
The use of stone to create rock gardens or water features adds to the interest and beauty of a garden. However, in doing so, gardeners and landscape designers should avoid using stone obtained from the
natural rock formations known as limestone pavements. This distinctive rock formation supports a unique assemblage of plants and animals that is under threat because of the use of this stone in gardens. The Royal Horticultural Society deplores the removal of limestone pavement stone and recommends the use of alternative, less environmentally sensitive, stone for landscaping purposes in gardens.
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A summary of RHS policy
1) The Royal Horticultural Society supports the efforts being made to protect remaining limestone pavements.
2) The RHS no longer sources surface-stripped limestone pavement rock for use in any of its gardens.
3) The RHS does not permit the use of surfacestripped limestone pavement rock in exhibits at its flower shows. The RHS disapproves of any activities which promote the use of such rock and recommends the use of alternatives.
4) The RHS gives advice on the use of other types of natural stone for the building of rock gardens and landscaping work. Wherever possible, recycled
stone should be used.
5) The RHS encourages gardeners to be alert to the possibility of damaging effects on the environment which may arise from the acquisition of any type of rock.