Tree-rings, sometimes called ring plantations, were a common enough gesture in the designed demesnes of eighteenth and nineteenth century Ireland, where circular or oval arrangements of trees were planted as eye-catchers, shelter belts, or simple demonstrations of order imposed upon land. At Tullira, this particular feature sits within what was once a carefully managed demesne landscape, shaped by the same impulse that produced walled gardens, lime avenues, and ornamental water features across the Irish countryside.

Tullira Castle itself has a longer and more layered history. The estate is associated with Edward Martyn, the playwright and cultural nationalist who was a founding figure of the Irish Literary Theatre alongside W. B. Yeats and Lady Gregory, whose own Coole Park lies not far away in south Galway. Martyn inherited Tullira and invested considerably in it, including the rebuilding of the castle in a Gothic Revival style in the late nineteenth century. The demesne around the castle would have reflected the tastes and means of successive owners, with planted features like this tree-ring forming part of the broader designed landscape that framed the approach and surroundings of the house.