Butterfly in the garden - A quilt block using Drunkard's Path subunits

Butterfly in the garden is a traditional quilt block that uses whole squares and Drunkard's Path blocks as its subunits.

It is a very large block when completed as it constructed from four quarters that are each a nine patches - meaning the final block is a 6 x 6 grid, given the curved piecing on the Drunkard's Path pieces it is not easy to make this block if your grid unit is a small one!  The pattern relies on the placement of the whole square to make the body of the butterfly.  Unlike most other arrangements of Drunkard's Path it uses 3 colours to make the design.