Stumpery: garden feature similar to a rockery but made from parts of dead trees. This can take the form of whole stumps, logs, pieces of bark or even worked timber such as railway sleepers or floorboards. The pieces are arranged artistically & plants, typically ferns, mosses & lichens are encouraged to grow around or on them. They provide a feature for the garden & habitat for several types of wildlife.
The Victorian Stumpery | Rhododendron Species Botanical Garden