The union star quilt block is another winner – simple to make and pretty to look at. I’ve made it here as a 12″ quilt block using dark blue, light blue and white fabrics.
2.1/2″ squares: four dark blue, four white
2.7/8″ squares: four each in dark blue and white, ten each in light blue and white
Making the union star quilt block
Use all the 2.7/8″ squares to make half square triangles in the colour combinations listed above. Place two squares with right sides together and mark a line along the diagonal. Sew a 1/4″ seam either side of the marked line and cut along the line to produce two half square triangles.
I’ve shown the layout here first with just the dark blue and white patchwork pieces in place. As you can see, the dark blue squares go in the corners of the union star quilt block and the white squares form a large square in the middle. The dark blue/white half square triangles are place on the edges of the white square, forming a white star.
Add the light blue/white half square triangles in all the remaining spaces. The block is made of six rows of six squares each. Check the photo to see which way the triangles point. Sew the squares together across each row and then sew the rows together to complete the union star quilt block pattern.