arbour
/ˈɑːbə/
noun
A shady garden alcove with the sides and roof formed by trees or climbing plants trained over a framework.
We have a scented country garden and pond, water features, gravel gardens, arbours, pergolas, a summerhouse, many rare and unusual perennials, and 120 clematis.
bower,alcove,grotto,recess,pergola,gazebo,summer house