Tree of the Month: Wild Service Tree

Each month we’re bringing you a profile of one of the UK’s native tree species in the Silk Wood Community Planting Project – this month it’s the Wild Service Tree (Sorbus torminalis), an indicator of ancient woodlands and one of the UK’s rarest native trees.

Also known as chequers -possibly due to its square, patchwork bark pattern - the wild service tree has a rich history. Its strong timber was once used for wine-press screws, billiard cues, and musical instruments, while its berries flavoured beer before hops became common. This brewing link explains why many pubs are named ‘The Chequers’ - including the Prime Minister’s residence, named for the trees growing in its grounds.

In spring, clusters of white flowers decorate the branches, but it’s in autumn that the tree truly stands out, with leaves turning a vivid crimson-bronze. This is also the time to collect its edible fruit, which taste like dried apricots when softened by frost - a process called bletting. Traditionally used as a remedy for colic (torminalis means “good for colic”), these fruits are becoming less palatable as frosts grow rarer with a warming climate.

Westonbirt Arboretum leads a consortium of institutions and experts working to prevent the extinction of Sorbus species - including the wild service tree. As part of this effort, many wild service saplings have been planted within the project, including one feature tree propagated from a self-seeded specimen in Silk Wood.