Cornus excelsa F&M 57
From 2250m in the foothills of the mighty Pico de Orizaba, Mexico's highest peak, this was a tree to 10m laden with sky-blue fruits in November when we happened to be passing by in 2004. Clusters of white flowers in summer. A success in the few gardens in the British Isles that have tried it. Will probably make a small tree here.