How to Crochet a Granny Square & Triangle Bandana: Step-by-Step Pattern

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This crochet bandana combines a classic granny-style square with two matching crochet triangles to create a lightweight, comfortable accessory with a beautiful lace finish.

The construction is simple: crochet the center square, make two matching triangles, join the three pieces, then finish the bandana with a decorative border and long ties.

What You’ll Need

  • Medium-weight yarn
  • 4 mm crochet hook
  • Yarn needle
  • Scissors
  • Measuring tape

Crochet Abbreviations

  • ch โ€“ chain
  • sc โ€“ single crochet
  • dc โ€“ double crochet
  • tr โ€“ treble crochet
  • sl st โ€“ slip stitch
  • sk st โ€“ skip stitch
  • ch-sp โ€“ chain space
  • BLO โ€“ back loop only

Step 1: Crochet the Center Granny Square

Start by making a magic ring.

Chain 3 and work 15 double crochets into the ring. Including the beginning chain, you should have 16 stitches.

Join the round with a slip stitch.

For the following rounds, begin introducing chain spaces between the double crochets. These spaces create the open granny-style texture of the bandana.

As the square grows, the corners are formed with larger chain spaces while the sides use smaller chain spaces.

Continue working around until the granny square has seven completed rounds.

At the end of the final round, fasten off and leave a short yarn tail for weaving in later.

Step 2: Crochet the First Triangle

The triangles are worked differently from the square. Instead of crocheting continuously in rounds, you’ll work back and forth in rows.

Start with another magic ring.

Chain 3 and work 7 additional double crochets into the ring.

Close the magic ring, chain 4, and turn your work.

On the next row, alternate double crochets and chain spaces across the stitches.

Continue turning after each row.

As you progress, use combinations of double crochet, single crochet, chain spaces, and treble crochet to gradually create the triangular shape.

The center of each row forms the main point while both sides should remain symmetrical.

Continue until you’ve completed seven rows.

Fasten off.

Step 3: Make the Second Triangle

Repeat the exact same process to create another triangle.

Try to keep your tension consistent so both triangles have approximately the same dimensions.

When finished, you should have three separate crochet pieces:

  • One granny square
  • One left triangle
  • One right triangle

Lay all three pieces flat before joining them.

Step 4: Join the Crochet Pieces

Place one triangle next to one side of the granny square.

Position the pieces with their right sides facing each other.

Insert your hook through the corresponding loops of both pieces and join them using slip stitches.

Continue along the entire joining edge.

Repeat the same process with the second triangle on the opposite side.

Once opened flat, the three joined motifs should begin to resemble the finished bandana shape.

Step 5: Add the Decorative Lace Edge

Attach your yarn at one outer corner of the bandana.

Begin working along the long upper edge.

Use double crochets combined with chain spaces to create an open lace pattern.

When you reach the center point, work additional stitches and chains into the center space. This helps the border follow the natural triangular shape instead of pulling inward.

Continue down the opposite side using the same stitch placement.

The two sides should mirror each other.

Step 6: Create the Scalloped Border

The final decorative row gives the bandana its soft scalloped appearance.

Work groups of double crochets into the larger chain spaces.

Between these groups, use single crochet stitches to pull the border slightly inward.

This combination creates alternating peaks and dips along the edge.

At the center point, add an extra chain space so the border can turn naturally around the triangle.

Continue the same pattern along the opposite side.

Step 7: Crochet the Bottom Edge

Rotate your work so you’re crocheting along the straight bottom edge.

Work single crochet stitches evenly across the edge.

Pay attention to the areas where the square and triangles were joined. Keep your stitch placement even so these joining points don’t become bulky.

A clean row of single crochet helps stabilize the bandana and prepares it for the ties.

Step 8: Make the First Bandana Tie

When you reach the first end of the bottom edge, chain 66.

Starting from the second chain from your hook, work slip stitches through the back loop only.

Continue all the way back toward the bandana.

This creates a long but relatively flat crochet tie.

Once you reach the main bandana again, continue working along the bottom edge.

Step 9: Make the Second Tie

When you reach the opposite corner, chain another 66 stitches.

Turn back along the chain and work slip stitches through the back loop only.

Continue until you reach the bandana.

Secure the final stitch and fasten off.

You should now have one long tie extending from each side.

Step 10: Weave In the Ends

Use a yarn needle to weave every loose yarn tail into the surrounding stitches.

Instead of pulling the yarn in only one direction, weave it through several nearby stitches and change direction once or twice.

Trim the remaining yarn only after the tail feels secure.

Step 11: Block the Crochet Bandana

Blocking is especially helpful for this design because it contains several open lace sections.

Gently shape the finished bandana into a symmetrical triangle.

Straighten the bottom edge and arrange the decorative border so the scallops and chain spaces sit evenly.

Allow the piece to dry completely in its final shape.

Your Crochet Bandana Is Finished!

You now have a handmade crochet bandana featuring a granny-style center, matching triangle sections, decorative lace edging, and long crochet ties.

Once you understand the basic construction, you can experiment with different yarn colors or create several bandanas using the same technique.

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