Traditional pattern, public domain. Among the most widely published star patterns in American quilting history.
A versatile star block built on a nine-patch grid with quarter-square triangle star points that create a more complex, layered look than a simple sawtooth star. The 'variable' name reflects its many possible color and fabric arrangements.
The Variable Star is one of the foundational star blocks in American quilting, dating to the early 1800s. It is closely related to the Ohio Star but uses different color placements in the quarter-square triangle points to create variations. The name 'Variable' reflects the countless ways quilters have interpreted this basic star framework.
Star blocks form the largest single category of traditional American quilt patterns, and the Variable Star sits at the heart of this family. Its adaptability made it popular across all regions and eras. Quilters could make it scrappy, two-color, or multi-fabric, and each version looked distinctly different while using the same construction.
Also known as: Ohio Star (closely related), Tippecanoe and Tyler Too, Eastern Star, Shining Star
finished Block Size
12 inches
seam Allowance
1/4 inch
grid Basis
3x3 grid (each unit 4 inches finished)
units Required
4 quarter-square triangle units (star points), 4 corner squares, 1 center square
All measurements include 1/4" seam allowance unless noted.
| Piece | Fabric | Cut Size | Qty | Notes |
|---|---|---|---|---|
| A | Dark | 5 1/4 x 5 1/4 inches | 1 | Cut twice diagonally (X) for 4 dark quarter-triangles |
| A | Medium | 5 1/4 x 5 1/4 inches | 1 | Cut twice diagonally (X) for 4 medium quarter-triangles |
| A | Background | 5 1/4 x 5 1/4 inches | 2 | Cut twice diagonally (X) for 8 background quarter-triangles |
| B | Background | 4 1/2 x 4 1/2 inches | 4 | Corner squares |
| C | Dark | 4 1/2 x 4 1/2 inches | 1 | Center square |
First make HSTs: sew one dark quarter-triangle to one background quarter-triangle along a short edge. Press toward the dark. Repeat to make a second HST from a medium and background quarter-triangle. Then join these two HSTs along their long edges, nesting seams, to form a QST square with dark, medium, and two background quadrants. Trim to 4 1/2 inches. Make 4 QST units.
Tip: Alternatively, use the two-sewn-HST method: make two HSTs, then sew them together to form the QST — this gives better control over seam alignment.
Lay out in a 3x3 grid: background squares in all four corners, QST star-point units on all four sides (with the colored triangles pointing outward from center like star points), and the dark center square in the middle.
Sew each row of 3 units together with 1/4 inch seams. Press seams in Rows 1 and 3 toward the corner squares. Press Row 2 seams toward the center square.
Pin Row 1 to Row 2, nesting seams at intersections. Sew and press. Pin Row 3 and sew. Press joining seams toward the outer rows.
Trim the block to 12 1/2 inches square. Verify that the star points are symmetrical and the center square is centered. The finished block (in the quilt) will be 12 inches.
See how this traditional pattern looks in different color combinations.
Straight set with sashing — 5x5 blocks with 2.5-inch sashing for a 72.5 x 72.5 inch queen-size top
Edge to edge for strong secondary star patterns at block intersections
Mixed with Evening Star blocks for a celestial-themed quilt