How to Crochet a Triangle Granny Square Poncho

Materials & tools you'll need

Step 1 — Crochet two triangles using the granny square technique

Start by creating a foundation chain to your desired poncho size, then join your first colour of wool yarn to the chain with a slip knot. Work rows as follows: chain 3, join with a slip stitch to the third chain from the hook to form a corner, work 6 double crochet stitches into the next chain-3 space, chain 1, turn, and repeat for all corners across the required number of rows. When you reach your desired triangle height, make a chain-1 space at the bottom, join with a slip stitch to the top of the last double crochet stitch, and fasten off. Repeat this whole process with your second colour of wool yarn to create the matching triangle.

Step 2 — Shape the shoulders with increases

For each triangle, add shoulder shaping by increasing stitches evenly around the top edge. After working 3 rows, increase 6 stitches by working two double crochet stitches into one space, followed by a chain 1, then continue with regular double crochet stitches for three more rows. Increase another 6 stitches after the next 3 rows in the same way, then continue crocheting with regular stitches until you reach your desired length.

Step 3 — Sew the two triangles together

Align the top edges of both triangles so they're even, then using a tapestry needle and your first colour of wool yarn, sew through one loop on one triangle and one loop on the other, continuing down the length of the edge until you reach the bottom. Fasten off the yarn and weave in the end with the tapestry needle.

Step 4 — Close the neckline with double and single crochet

Close the hole left at the top for the head using a combination of double crochet and single crochet stitches for a softer edge. Chain 3 (counting as the first double crochet), double crochet in each corner, chain 1, turn, and work a row of double crochet stitches along one side of the opening. Chain 1, turn, then work a row of single crochet stitches along the other side. Repeat this process until the hole is fully closed and the neckline reaches your desired size, checking the circumference regularly to keep it even.

Step 5 — Add tassels (optional)

To make tassels, wrap yarn around an object such as a book until you've built up your desired thickness, then cut multiple pieces of equal length — roughly 8 to 10 strands per tassel. Insert the bundle through the large chain-1 space on the poncho, form a loop with the ends, and pass the tails through the loop before pulling tight to form the tassel. Repeat for as many tassels as you'd like around the poncho.

Step 6 — Weave in all ends

Using a tapestry needle, weave in all remaining loose ends from both the poncho body and the tassels. Work gently rather than pulling too tightly, since over-tightening can distort the shape of the crocheted fabric. Your finished triangle granny square poncho is ready to wear.

Frequently asked questions

How do I crochet the two triangles for a granny square poncho?
Start with a foundation chain, then join your wool yarn with a slip knot. Work rows as follows: chain 3, join with a slip stitch to the third chain from the hook to form a corner, work 6 double crochet stitches into the next chain-3 space, chain 1, turn, and repeat for all corners and rows. At your desired triangle height, make a chain-1 space at the bottom, join with a slip stitch to the top of the last double crochet, and fasten off. Repeat using the second colour of wool yarn for the matching triangle.

How do I shape the shoulders on a crochet poncho?
For each triangle, increase 6 stitches evenly around the top edge after every 3 rows, working two double crochet stitches into one space to create the increase, followed by a chain 1. Continue this increase pattern every 3 rows until the triangle reaches your desired length.

How do I sew the two triangles together for a poncho?
Align the top edges of both triangles evenly, then use a tapestry needle and your first colour of wool yarn to sew through one loop on each triangle, continuing down the length of the edge to the bottom. Fasten off and weave in the end with the tapestry needle.

How do I close the neckline hole on a crochet poncho?
Combine double crochet and single crochet stitches for a softer edge: chain 3 (counting as the first double crochet), double crochet in each corner, chain 1, turn, work a row of double crochet along one side of the opening, chain 1, turn, then work a row of single crochet along the other side. Repeat until the hole is closed and the neckline reaches your desired size, checking the circumference regularly for an even fit.

How do I add tassels to a crochet poncho?
Wrap yarn around an object such as a book until you've built up enough thickness, then cut multiple equal-length pieces (roughly 8 to 10). Insert the bundle through a chain-1 space on the poncho, form a loop with the ends, pass the tails through the loop, and pull tight to form each tassel.

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