Watermelon Slice Foundation Paper Piecing Pattern

Free to print · Intermediate · 38 pieces · 11 sections · 12″ block

Pattern diagram in the suggested fabrics. Every line is a seam.

A wedge of watermelon pointing down, with dark and light green rind across the top, pink flesh and two rows of black seeds, on butter yellow.

Open and print this pattern

Opens in the free FPP tool. Pick your fabrics and block size, then print or download the PDF. No account needed.

Finished size: 12″ × 12″
Prints at: 4 to 18″
Pieces: 38
Sections: 11
Smallest piece: about 0.4 sq in at 12″
Fabrics: 5
Skill level: Intermediate
Price: Free, no sign-up
Using it: Use it for anything you sew, including quilts you sell. Please don't resell or repost the pattern itself; share a link to this page instead.

About this pattern

The Watermelon Slice is a free foundation paper piecing (FPP) pattern from NiftyFifty: a 12-inch square block of 38 pieces sewn in 11 sections, using 5 fabrics, at a intermediate skill level. It opens in NiftyFifty's free browser-based FPP tool, which prints mirrored foundations with 1/4-inch seam allowance at 4 to 18 inches. Every seam is a straight line, so the whole block is sewn with the flip-and-sew method.

Piece map

Letters are sections, numbers are sewing order. Dashed lines outline each section's foundation.

How to sew it

Open and printOpen the pattern in the free FPP tool, pick your fabrics and a block size (4 to 18 inches), and print or download the PDF. Print at 100% and check the 1-inch test square.
Cut the foundations apartCut each section's foundation apart just outside its dashed line. The dashed line is the 1/4-inch seam allowance.
Sew each section in number orderSew all 11 sections on the foundation, piece 1 first, then 2, 3 and on. Flip, press and trim the seam to 1/4 inch after each one. When a section is done, trim it on its dashed line.
4
Join the sections
Show all 10 joins, in order
1. Join section A to section B along their shared straight seam.
2. Sew section C to the A+B assembly along their shared straight seam.
3. Sew section D to the C+A+B assembly along their shared straight seam.
4. Join section E to section F along their shared straight seam.
5. Sew section G to the E+F assembly along their shared straight seam.
6. Join the D+C+A+B assembly to the G+E+F assembly.
7. Join section H to section I along their shared straight seam.
8. Sew section J to the H+I assembly along their shared straight seam.
9. Join the D+C+A+B+G+E+F assembly to the J+H+I assembly.
10. Sew section K to the D+C+A+B+G+E+F+J+H+I assembly along their shared straight seam.
Finish the blockPress, check that the block measures 12.5 inches square with seam allowance (12 inches finished), then tear the paper away.

Fabrics

Butter61% of the block, 5 pieces
Coral27% of the block, 21 pieces
Forest6% of the block, 3 pieces
Sage4% of the block, 3 pieces
Black2% of the block, 6 pieces

Suggested colors. The printed pattern lists rough-cut sizes for whatever fabrics you choose.

Choosing a block size

Smaller blocks mean smaller pieces. Under about half a square inch, pieces get fiddly, so this one is most comfortable at 14″ and up.

Finished block	Smallest piece
6″ × 6″	about 0.1 sq in
8″ × 8″	about 0.2 sq in
10″ × 10″	about 0.3 sq in
12″ × 12″ (as drafted)	about 0.4 sq in
16″ × 16″	about 0.7 sq in

A sewing tip for this block

The seeds are small, so cut black pieces generously and let the paper trim them. Press the long wedge seams toward the rind side so the bottom point stays flat.

What to make with it

Picnic placemats, a summer mug rug, or a row of slices for a Fourth of July table runner.

Try it in other colors

A yellow watermelon with gold flesh and dark seeds looks fresh on a light blue background. Every fabric can be swapped in the FPP tool before you print.

Make it yours: every pattern is a starting point

These patterns are free and open to change. Think of each one as a starting point, not a finished rule: remix it into your colors, your size, your idea.

1Open itEvery pattern opens in the free FPP tool, no account needed.
2Change anythingSwap fabrics, change the size, move or add seams. The sewing order and sections update on their own.
3Save it as yoursSave your version to a free account and share it. Other quilters can then remix yours, credited to you.

Open and remix this pattern

Questions

What can I make with the Watermelon Slice block?

Picnic placemats, a summer mug rug, or a row of slices for a Fourth of July table runner.

Is this watermelon FPP pattern free?

Yes. The Watermelon Slice pattern is free to open, recolor and print, and you don't need an account. It opens in NiftyFifty's free FPP tool, which prints the foundations or downloads them as a PDF.

Is the Watermelon Slice block good for beginners?

It's best once you have a few paper pieced blocks behind you: 38 pieces in 11 sections, so there are 10 joins to line up. Printing it larger makes every piece roomier.

How many pieces and sections does the Watermelon Slice block have?

38 pieces in 11 sections, using 5 fabrics. Each section is sewn on its own foundation, then the sections are joined along straight seams. The printed pattern numbers every piece in sewing order.

What size does it print?

It's drafted as a 12-inch finished block, and you can print it at 4 to 18 inches. At 12 inches the smallest piece is about 0.4 square inches; at 6 inches it's about 0.1 square inches.

Can I sell quilts I make from the Watermelon Slice pattern?

Yes. Use it for anything you sew, including quilts you sell. Please don't resell or repost the pattern itself; share a link to this page instead.

Is there a PDF of the watermelon pattern?

Yes. The FPP tool downloads a PDF with a 1-inch test square, a color key, an assembly map, the sewing order and every foundation drawn at exact size with 1/4-inch seam allowance. Print it at 100%.

Can I change the colors?

Yes. Open it in the FPP tool, click a piece, then click a fabric: over 600 real Kona and Bella solids plus thousands of prints. You can also move seams or add new ones before you print.

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