Later I was looking at Planet Terracotta, a wide flower pot in Medlar Wood that I filled with woodland earth ten years ago to see what would grow there. The picture below shows a variety of fallen leaves and (top left) a decaying medlar. There is a plant of herb robert (bottom centre) and just above it to the right a small bugle. However, between the bugle and the moss on the terracotta rim is what I am pretty sure is a small rowan (Sorbus aucuparia), a tree I have not recorded in the Green Sanctuary before. This makes the number of tree species self-sown in the Green Sanctuary up to eleven: birch, sallow, ash, holly, oak, hornbeam, hazel, hawthorn, sycamore, elder and rowan. We also have at least two wild rose species, two or three cotoneasters, privet and ivy.
And here is Planet Terracotta photographed at the edge of Medlar Wood on 24 October 2007: