Assemble D Units
1. Sew matching light green print 2x2-1/2" rectangles to short edges of a yellow-and-green print 2-1/2x6-1/2" rectangle (Diagram 4). Join matching light green print 2x9-1/2" rectangles to remaining edges to complete unit D. Press all seams toward yellow-and-green print rectangle. Unit D should be 5-1/2x9-1/2" including seam allowances.
2. Repeat Step 1 to make 16 total of unit D.