You will see the use of this symbol on labels and other information about our trees.
This award represents a mark of excellence for individual plants but it is important to stress that this will not mean that trees that do not have this recognition are less desirable or do not perform as well.
The RHS run professional and well executed AGM trials which are a helpful guide to the gardening public. However these trials are undertaken with a limited range of plants, chosen for comparative purposes, and not necessarily conducted on a wide range of site and soil situations. It is a useful guide but far from exhaustive.
For more information click on the link below: