1. All seams are 1/4". When instructed to cut a strip across WOF (width of fabric), cut the strip from selvedge to selvedge (42-44").
1. For the square-in-a-square blocks (make 9), cut the following pieces: one 6-1/2"xWOF white poinsettia strip and cut four 6-1/2" squares from strip; one 6-1/2"xWOF red poinsettia strip and cut five 6-1/2" squares from strip; three 5-1/8"xWOF green strips and cut 18 5-1/8" squares from strips; four 6-7/8"xWOF white strips and cut 18 6-7/8" squares from strips.
2. Cut green and white squares diagonally to make 36 triangles of each color. (Note: To make matching more precise, mark center of each side of each square and center of long side of each triangle with fabric pen.) (See Fig. 1).
3. Sew one green triangle to opposite sides of white or red poinsettia square, matching fabric marks. Press seams away from center. Repeat with remaining green triangles. (See Fig. 2).
4. Sew one white triangle to each side of square, matching fabric marks to center of square. (Note: It is important that seam crosses point to create crisp point on front of block.) Repeat with remaining white triangles. (See Fig. 3). If desired, use squaring ruler to ensure each block is square and seam allowance at points is 1/4".
5. (Note: In Steps 5-7, sashing (strips between blocks) and cornerstones (squares) are labeled A-E to help with placement on quilt.) For sashing, cut following pieces: four 3-1/2"xWOF red strips and cut 12 12-1/2"x3-1/2" pieces from strips. Label pieces "A". Cut four 2"xWOF red strips and four 2"xWOF white strips. Sew one 2" red strip to one 2" white strip lengthwise to make strip set (Label pieces "B"). Press seam toward red fabric. Repeat with remaining strips to make total of four strip sets. Cut each strip set into three 12-1/2" lengths (for total of 12 3-1/2"x12-1/2" pieces). (See Fig. 4).
6. For cornerstones, cut two 3-1/2"xWOF white strips and cut 16 3-1/2" squares from strips. Cut two 2"xWOF red strips and cut 36 2" squares from strips. Position one red square against corner of one white square with right sides together. Draw diagonal line across back of red square using fabric pen. Sew on line. Press red fabric toward corner to create triangle inset. Trim away fabric in back. Repeat with red square in each corner. Use four white squares and 16 red squares to make four units. (Label pieces "C"). (See Fig. 5).
7. Using eight white squares and 16 red squares, sew one red square to two adjacent corners following instructions above. Make eight units. (Label pieces "D"). (See Fig. 6). Using four white squares and four red squares, sew one red square to one corner of white square following instructions above. Make four units. (Label pieces "E"). (See Fig. 7).
8. To assemble quilt top, using layout diagram as guide, sew sashing strips and cornerstone squares together to make long horizontal sashing strips. Press seams on strips toward red or red/white sashing strips. Sew remaining sashing strips and blocks together to make block strips. Press seams on strips toward red sashing piece. Sew strips together to make quilt top.
9. For border, cut six 6-1/2"xWOF red poinsettia strips. Sew strips together along short ends. Press seams to one side. From this long strip, cut two 6-1/2"x48-1/2" strips and two 6-1/2"x60-1/2" strips. Sew shorter strips to opposite sides of quilt top; press seams away from center. Sew longer strips to remaining sides of quilt top; press seams away from center.
10. Layer backing (wrong side up), batting, and quilt top (right side up). Pin or baste. Quilt as desired. (Note: Sample quilt is quilted with freehand swirls and poinsettias and straight-line quilting.) Apply binding.