Southern Belle Quilt Block Pattern

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How to Sew a Southern Belle Quilt Block

The Southern Belle quilt block is a beautiful and classic design, perfect for creating a traditional quilt with elegant detail.

Materials:

• Fabric in three shades: light, medium, and dark
• Rotary cutter, cutting mat & ruler
• Sewing machine & thread
• Iron and ironing board

Cut your fabric:

• Light fabric: four 4½" squares, two 3⅞" squares, two 3½" squares, and four 2⅞" squares
• Medium fabric: four 4½" squares and four 2⅞" squares
• Dark fabric: four 3⅞" squares and four 3½" squares

Instructions:

1. Draw a diagonal line on the back of each 3⅞" light square. Place one light and one dark square right sides together. Sew a ¼" seam on each side of the line, then cut along the line to make two half-square triangles. Press seams toward the darker fabric. Trim to 3½" square. Repeat to make 4 HST units.
2. Draw a diagonal line on the back of each 2⅞" light square. Place one light and one medium square right sides together. Sew a ¼" seam on each side of the line, then cut along the line to make two half-square triangles. Press seams toward the darker fabric. Trim to 2½" square. Repeat to make 8 small HST units.
3. Arrange all pieces in a 3×3 grid following the Southern Belle layout, using the 4½" squares as corners and the HST units and 2½" squares as the inner sections.
4. Sew the pieces in each row together. Press seams toward the darker fabric.
5. Sew the rows together, matching and nesting seams. Press seams in the opposite direction of the previous row.
6. Your Southern Belle block is complete! Repeat to make as many blocks as needed for your quilt.

Four Patch Piecing

The secret to a perfect four patch is pressing seams so they butt together when joined. You can make a four patch by cutting individual squares (great for scrappy quilts) or using pre-joined strips for speed.

Cut two A squares and two B squares in your required size. Using chain piecing, join an A square to a B square, right sides together, with a scant ¼" seam allowance. Press toward the dark fabric. Your result:

Press all seams toward the dark fabric so they butt up. Place the two A/B units right sides together with butted seams, pin if needed, and join with a scant ¼" seam allowance. Press.

Wider Application

This technique applies to all kinds of four patch blocks. As long as a block has a 4×4 grid — no matter how many pieces — the basic principles apply. Keep pressing seams in pairs of opposite directions and piecing will be smooth sailing.

How to Resize Quilt Blocks

The first step in modifying any quilt block is to decide on the finished size. You can base this on doubling a pattern, cutting it in half, or working with your available fabric.

Important: Always remove the seam allowance before doubling or tripling the size. For example, if your pattern calls for 3½" squares, subtract the seam allowances (½"), double the finished block size (3" → 6"), then add the seam allowance back (½"). You’ll end up cutting a 6½" piece of fabric.

Resizing Square Blocks

Add ½" to your desired finished block measurement. For a 4" finished square, cut a 4½" square of fabric.

Resizing Rectangular Blocks

Add ½" to both the length and width. To double a block that measures 3" × 4", cut a 6½" × 8½" rectangle of fabric.

Resizing Half-Square Triangle Blocks

Add ⅞" to the desired finished block size. For a 4" finished block, cut 4⅞" squares.

Resizing Quarter-Square Triangle Blocks

Add 1¼" to the desired finished block size. For a 4" finished block, cut your squares 5¼".