The Trillium: Geometric Triangle Scarf Crochet Pattern

The Trillium is a lightweight triangle scarf crochet pattern with a fun geometric pattern and lots of tassels. This free crochet pattern makes the perfect warm weather scarf that can double as a shawl or wrap. This post contains affiliate links, which help to support this blog. Thank you!

Hello there! I am very excited to share a brand new triangle scarf crochet pattern with you all today! I am participating in the Scarf of the Month Club hosted by Oombawka Design and The Stitchin Mommy. The idea is to share 24 free scarf patterns throughout the year so you can get a head start on making your holiday gifts.

I really love the idea of getting ahead on holiday gift making, but it is also July here in the desert and 110+ degrees, so I just couldn’t bring myself to make a cozy wooly winter scarf. Instead, I designed this triangle scarf crochet pattern made out of lightweight cotton yarn, which means it breathes wonderfully and adds just a light layer of warmth perfect for cool nights or just looking cool. Ha!

My sister helped me come up with the name Trillium inspired by its fun geometric pattern and the triangle-shaped diamonds and flowers of the same name.

Ready to make your own? Let’s do this!

Triangle Scarf Crochet Pattern Supplies

Number 1 Weight Super Fine or Fingering Weight Yarn (I used Knit Picks’ Lindy Chain, which is a cotton and linen blend. I used about 240 yards of the white and 160 yards of the pink. If you use a thicker weight yarn, you will need to up the size of your hook and the overall size of the motifs and scarf will increase.)
Size G (4.00 mm) Crochet Hook
Scissors
Yarn Needle

Triangle Scarf Crochet Pattern

Please note: This pattern is free for personal use. You may sell items you make using my patterns, but please use a link when possible. You may not sell or redistribute my pattern. If you would like to share the pattern with a friend, please send them the link. Page views help to support this blog and allow me to provide free patterns like this one. Thank you! 🙂

This pattern uses American crochet terms.

Special Stitches:

Double Crochet 2 Together (dc2tog): Yarn over, insert hook in next stitch, draw up a loop (3 loops on hook), insert hook in next stitch, draw up a loop (4 loops on hook). Yarn over and draw through first three loops (2 loops remaining). Yarn over and draw through last two loops. Dc2tog completed.

Double Crochet 3 Together Cluster (dc3tog cluster): Ch 3. Yarn over, insert hook in next stitch draw up loop (3 loops on hook), insert hook in next stitch, draw up a loop (4 loops on hook). Yarn over and draw through first three loops (2 loops remaining on hook). Yarn over, insert hook in next stitch draw up loop (3 loops on hook), insert hook in next stitch, draw up a loop (4 loops on hook). Yarn over and draw through first three loops (3 loops remaining on hook). Yarn over and draw through all 3 loops. Dc3tog cluster completed.

For this scarf you will need to crochet four different motifs, which will then be sewn together to form the scarf – the diamond, large triangle, small triangle, and half diamond.

My finished scarf is about 45″ long and 18″ wide (plus tassels). You will need the following number of motifs to complete the scarf.

Diamonds – 14 total (11 in Color A and 3 in Color B)
Large Triangle – 8 (Color B)
Small Triangle – 8 (Color A)
Half Diamond – 2 (Color A)

Diamond Pattern (Make 14 – 11 in Color A and 3 in Color B)

In this pattern, the starting ch 3 and dc2tog always count as a dc.

Row 1: Ch 3, work 2 dc in first ch (3rd from hook) (3 dc). Turn.

Row 2: Ch 3, dc in same space, dc in next st, 2 dc in top ch of starting ch 3 (5 dc). Turn.

Row 3: Ch 3, dc in same space, dc in next 3 sts, 2 dc in top ch of starting ch 3 (7 dc). Turn.

Row 4: Ch 3, dc in same space, dc in next 2 sts, ch 1, skip next stitch, dc in next 2 sts,2 dc in top ch of starting ch 3 (8 dc, ch 1 sp). Turn.

Row 5: Ch 3, dc in same space, dc in next 2 sts, ch 1, skip next stitch, dc in ch 1 sp, ch 1, skip next stitch, dc in next 2 sts, 2 dc in top ch of starting ch 3 (9 dc, 2 ch 1 sps). Turn.

Row 6: Ch 3, dc in same space, dc in next 2 sts, ch 1, skip next stitch, dc in ch 1 sp, dc in next st, dc in ch 1 sp, ch 1, skip next stitch, dc in next 2 sts, 2 dc in top ch of starting ch 3 (11 dc, 2 ch 1 sps). Turn.

Row 7: Ch 3, dc in same space, dc in next 2 sts, ch 1, skip next stitch,dc in ch 1 sp, dc in next 3 sts, dc in ch 1 sp, ch 1, skip next stitch, dc in next 2 sts, 2 dc in top ch of starting ch 3 (13 dc, 2 ch 1 sps). Turn.

Row 8: Ch 3, dc in same space, dc in next 2 sts, ch 1, skip next stitch, dc in ch 1 sp, dc in next 5 sts, dc in ch 1 sp, ch 1, skip next stitch, dc in next 2 sts, 2 dc in top ch of starting ch 3 (15 dc, 2 ch 1 sps). Turn.

Row 9: Ch 3, dc in same space, dc in next 2 sts, ch 1, skip next stitch, dc in ch 1 sp, dc in next 7 sts, dc in ch 1 sp, ch 1, skip next stitch, dc in next 2 sts, 2 dc in top ch of starting ch 3 (17 dc, 2 ch 1 sps). Turn.

Row 10: Ch 3, dc in same space, dc in next 2 sts, ch 1, skip next stitch, dc in ch 1 sp, dc in next 4 sts, ch 1, skip next st, dc in next 4 sts, dc in ch 1 sp, ch 1, skip next stitch, dc in next 2 sts, 2 dc in top ch of starting ch 3 (18 dc, 3 ch 1 sps). Turn.

Row 11: Ch 3, dc in same space, dc in next 2 sts, ch 1, skip next stitch, dc in ch 1 sp, dc in next 4 sts, ch 1, skip next st, dc in ch 1 sp, ch 1, skip next st, dc in next 4 sts, dc in ch 1 sp, ch 1, skip next stitch, dc in next 2 sts, 2 dc in top ch of starting ch 3 (19 dc, 4 ch 1 sps). Turn.

Row 12: Ch 3, dc in same space, dc in next 2 sts, ch 1, skip next stitch, dc in ch 1 sp, dc in next 4 sts, ch 1, skip next st, dc in ch 1 sp, dc in next st, dc in ch 1 sp, ch 1, skip next st, dc in next 4 sts, dc in ch 1 sp, ch 1, skip next stitch, dc in next 2 sts, 2 dc in top ch of starting ch 3 (21 dc, 4 ch 1 sps). Turn.

Row 13: Ch 3, dc2tog over next two sts, dc in next st, dc in ch 1 sp, ch 1, skip next st, dc in next 4 sts, dc in ch 1 sp, ch 1, skip next st, dc in next st, ch 1, skip next st, dc in ch 1 sp, dc in next 4 sts, ch 1 skip next st, dc in ch 1 sp, dc in next 2 sts, dc2tog (19 dc, 4 ch 1 sps). Turn.

Row 14: Ch 3, dc2tog over next two sts, dc in next st, dc in ch 1 sp, ch 1, skip next st, dc in next 4 sts, dc in ch 1 sp, ch 1, skip next st, dc in ch 1 sp, dc in next 4 sts, ch 1 skip next st, dc in ch 1 sp, dc in next 2 sts, dc2tog (18 dc, 3 ch 1 sps). Turn.

Row 15: Ch 3, dc2tog over next two sts, dc in next st, dc in ch 1 sp, ch 1, skip next st, dc in next 4 sts, dc in ch 1 sp, dc in next 4 sts, ch 1 skip next st, dc in ch 1 sp, dc in next 2 sts, dc2tog (17 dc, 2 ch 1 sps). Turn.

Row 16: Ch 3, dc2tog over next two sts, dc in next st, dc in ch 1 sp, ch 1, skip next st, dc in next 7 sts, ch 1 skip next st, dc in ch 1 sp, dc in next 2 sts, dc2tog (15 dc, 2 ch 1 sps). Turn.

Row 17: Ch 3, dc2tog over next two sts, dc in next st, dc in ch 1 sp, ch 1, skip next st, dc in next 5 sts, ch 1 skip next st, dc in ch 1 sp, dc in next 2 sts, dc2tog (13 dc, 2 ch 1 sps). Turn.

Row 18: Ch 3, dc2tog over next two sts, dc in next st, dc in ch 1 sp, ch 1, skip next st, dc in next 3 sts, ch 1 skip next st, dc in ch 1 sp, dc in next 2 sts, dc2tog (11 dc, 2 ch 1 sps). Turn.

Row 19: Ch 3, dc2tog over next two sts, dc in next st, dc in ch 1 sp, ch 1, skip next st, dc in next st, ch 1 skip next st, dc in ch 1 sp, dc in next 2 sts, dc2tog (9 dc, 2 ch 1 sps). Turn.

Row 20: Ch 3, dc2tog over next two sts, dc in next st, dc in ch 1 sp, ch 1, skip next st, dc in ch 1 sp, dc in next 2 sts, dc2tog (8 dc, ch 1 sp). Turn.

Row 21: Ch 3, dc2tog over next two sts, dc in next st, dc in ch 1 sp, dc in next 2 sts, dc2tog (7 dc). Turn.

Row 22: Ch 3, dc2tog over next two sts, dc in next 2 sts, dc in ch 1 sp, dc2tog (5 dc). Turn.

Row 23: Dc3tog cluster (3 dc). Finish off. Leave long tail for sewing together motifs.

Large & Small Triangle Patterns

The large and small triangles will be sewn together to form diamond motifs made up of two colored triangles. You will need 8 each of the large (Color B) and small (Color A) triangles.

Large Triangle Pattern (Make 8 in Color B)

The pattern for the Large Triangle is just the first 12 rows of the Diamond Pattern.

In this pattern, the starting ch 3 and dc2tog always count as a dc.

Row 1: Ch 3, work 2 dc in first ch (3rd from hook) (3 dc). Turn.

Row 2: Ch 3, dc in same space, dc in next st, 2 dc in top ch of starting ch 3 (5 dc). Turn.

Row 3: Ch 3, dc in same space, dc in next 2 sts, 2 dc in top ch of starting ch 3 (7 dc). Turn.

Row 4: Ch 3, dc in same space, dc in next 2 sts, ch 1, skip next stitch, dc in next 2 sts,2 dc in top ch of starting ch 3 (8 dc, ch 1 sp). Turn.

Row 5: Ch 3, dc in same space, dc in next 2 sts, ch 1, skip next stitch, dc in ch 1 sp, ch 1, skip next stitch, dc in next 2 sts, 2 dc in top ch of starting ch 3 (9 dc, 2 ch 1 sps). Turn.

Small Triangle Pattern (Make 8 in Color A)

The Small Triangle is the first 11 rows of the Diamond Pattern.

In this pattern, the starting ch 3 and dc2tog always count as a dc.

Row 1: Ch 3, work 2 dc in first ch (3rd from hook) (3 dc). Turn.

Row 2: Ch 3, dc in same space, dc in next st, 2 dc in top ch of starting ch 3 (5 dc). Turn.

Row 3: Ch 3, dc in same space, dc in next 2 sts, 2 dc in top ch of starting ch 3 (7 dc). Turn.

Row 4: Ch 3, dc in same space, dc in next 2 sts, ch 1, skip next stitch, dc in next 2 sts,2 dc in top ch of starting ch 3 (8 dc, ch 1 sp). Turn.

Row 5: Ch 3, dc in same space, dc in next 2 sts, ch 1, skip next stitch, dc in ch 1 sp, ch 1, skip next stitch, dc in next 2 sts, 2 dc in top ch of starting ch 3 (9 dc, 2 ch 1 sps). Turn.

Half Diamond Pattern (Make 2 in Color A)

In this pattern, the starting ch 3 and dc2tog always count as a dc.

Row 1: Ch 3, work 1 dc in first ch (3rd from hook) (2 dc). Turn.

Row 2: Ch 3, dc in same space, dc in next st (3 dc). Turn.

Row 3: Ch 3, dc in next st, 2 dc in top ch of starting ch 3 (4 dc). Turn.

Row 4: Ch 3, dc in same space, dc in next 3 sts (5 dc). Turn.

Row 5: Ch 4 (counts as dc and ch 1), skip next st, dc in next 2 sts, 2 dc in top ch of starting ch 3 (5 dc, 1 ch 1 sp). Turn.

Row 6: Ch 3, dc in same space, dc in next 2 sts, ch 1, skip next stitch, dc in ch 1 sp, dc top ch of starting ch 3 (6 dc, 1 ch 1 sp). Turn.

Row 7: Ch 3, dc in next st, dc in ch 1 sp, ch 1, skip next stitch, dc in next 2 sts, 2 dc in top ch of starting ch 3 (7 dc, 1 ch 1 sp). Turn.

Row 8: Ch 3, dc in same space, dc in next 2 sts, ch 1, skip next stitch, dc in ch 1 sp, dc in next 3 sts (8 dc, 1 ch 1 sp). Turn.

Row 9: Ch 3, dc in next 3 sts, dc in ch 1 sp, ch 1, skip next stitch, dc in next 2 sts, 2 dc in top ch of starting ch 3 (9 dc, 1 ch 1 sp). Turn.

Row 10: Ch 3, dc in same space, dc in next 2 sts, ch 1, skip next stitch, dc in ch 1 sp, dc in next 4 sts, 2 dc in top ch of starting ch 3 (10 dc, 1 ch 1 sp). Turn.

Row 11: Ch 4 (counts as dc and ch 1), skip next stitch, dc in next 4 sts, ch 1, dc in ch 1 sp, ch 1, skip next st, dc in next 2 sts, 2 dc in top ch of starting ch (10 dc, 2 ch 1 sps). Turn.

Row 12: Ch 3, dc in same space, dc in next 2 sts, ch 1, skip next stitch, dc in ch 1 sp, dc in next 4 sts, ch 1, skip next st, dc in ch 1 sp, dc in third ch of starting ch 3 (11 dc, 2 ch 1 sps). Turn.

Row 13: Ch 4 (counts as dc and ch 1), skip nextx st, dc in ch 1 sp, dc in next 4 sts, ch 1, skip next st, dc in ch 1 sp, dc in next 2 sts, dc2tog (10 dc, 2 ch 1 sps). Turn.

Row 14: Ch 3, dc2tog over next two sts, dc in next st, dc in ch 1 sp, ch 1, skip next st, dc in next 4 sts, dc in ch 1 sp, dc in third ch of starting ch (10 dc, 1 ch 1 sp). Turn.

Row 15: Ch 3, dc in next 4 sts, ch 1 skip next st, dc in ch 1 sp, dc in next 2 sts, dc2tog (9 dc, 1 ch 1 sp). Turn.

Row 16: Ch 3, dc2tog over next two sts, dc in next st, dc in ch 1 sp, ch 1, skip next st, dc in next 4 sts (8 dc, 1 ch 1 sp). Turn.

Row 17: Ch 3, dc in next 2 sts, ch 1 skip next st, dc in ch 1 sp, dc in next 2 sts, dc2tog (7 dc, 1 ch 1 sp). Turn.

Row 18: Ch 3, dc2tog over next two sts, dc in next st, dc in ch 1 sp, ch 1, skip next st, dc in next 2 sts (6 dc, 1 ch 1 sp). Turn.

Row 19: Ch 4 (counts as dc and ch 1), skip next st, dc in ch 1 sp, dc in next 2 sts, dc2tog (5 dc, 1 ch 1 sp). Turn.

Row 20: Ch 3, dc2tog over next two sts, dc in next st, dc in ch 1 sp, dc in third ch of starting ch (5 dc). Turn.

Row 21: Ch 3, dc in next 2 sts, dc2tog (4 dc). Turn.

Row 22: Ch 3, dc2tog over next two sts, dc in next st (3 dc). Turn.

Row 23: Dc3tog cluster (3 dc). Finish off. Leave long tail for sewing together motifs.

Triangle Scarf Crochet Pattern Assembly

Once you have all of your motifs crocheted, it’s time to sew them all together. Use the image below as a guide to help you place your motifs.

I joined my pieces using my yarn needle and a blind stitch (see image below). I recommend leaving a long tail when you finish off each motif and using that to join the pieces (this reduces the number of ends you have to weave in!)

Finally, when your scarf is all pieced together, you get to add tassels, which is maybe my favorite part. Start with five lengths of yarn more than double the desired length of the finished tassel. Fold in half and use your crochet hook to pull the center fold through the edge of your scarf. Pull the tails through the loop and tighten.

I added tassels about every 3/4″ up the pointed edge of the scarf.

And that’s it! Your new pretty scarf is all ready to wear!

I hope you like this little triangle scarf crochet pattern! If you make your own Trillium Scarf, I would love to see it! Share your photos to my facebook page or tag me on instagram or twitter (@persialou), and don’t forget to use the hashtag #persialou for a chance to be featured.

Happy Making!

Looking for more free crochet scarf patterns? Check these out:

Tasseled Crochet Neckerchief

Windowpane Plaid Crochet Scarf

Textured Infinity Scarf

Super Duper Chunky Cowl

Comments

Arlene says
July 17, 2016 at 4:03 pm
Thank you so much. Your patterns are awesome!
Reply
- Alexis says
  July 17, 2016 at 4:29 pm
  Thanks so much, Arlene! 🙂
  Reply
andrea says
July 19, 2016 at 6:32 am
What a beautiful scarf, thanks for sharing Alexis.
Reply
- Alexis says
  July 19, 2016 at 12:54 pm
  You are so welcome! Thanks so much for stopping by and commenting, Andrea!
  Reply
Michelle Lane-Perkins says
July 21, 2016 at 4:36 pm
I am normally not a scarf kinda girl but this one I really like! Thanks!
Reply
- Alexis says
  July 22, 2016 at 10:26 am
  Thanks so much, Michelle!
  Reply
Kate says
July 23, 2016 at 5:44 am
This is hands down the prettiest scarf I have ever seen! Now I just have to brush up on my crochet skills.
Reply
- Alexis says
  July 24, 2016 at 4:05 pm
  Thank you so much! What a sweet comment. Made my day. 🙂
  Reply
monika says
August 3, 2016 at 8:05 am
i love this pattern!! can this also be made into a shawl? if so, how would i arrange the triangles?
Reply
- Alexis says
  August 3, 2016 at 9:52 am
  Hi Monika! Yes! I would just kind of keep following the pattern to make it a bit longer, so add 2-4 more of the solid white diamonds along the edge to extend the length, and then fill in the remaining spaces following the pattern. You will probably need to add a few more of the half diamonds to get a perfect triangle shape too. I hope that is helpful!
  Reply
  - monika says
    August 3, 2016 at 10:06 am
    thanks!
    Reply
CJ says
August 4, 2016 at 7:40 am
I LOVE this scarf! It is so lovely!
I believe in Row 3 of the diamond it should be: dc in next 3 sts – rather than the next 2 sts.
This is a great pattern, thanks so much!!
Reply
- Alexis says
  August 5, 2016 at 9:46 am
  Thank you for catching that! I will change it now. 🙂
  Reply
Willow says
August 5, 2016 at 2:53 pm
I just love your creativity. This scarf is just gorgeous!!! I did make your clutch using chain. My granddaughter loved it. I added a strap because, even though an adult, she loses everything LOL!!! I plan on making more clutches for others in my family. Thanks so much for sharing your art with us!!!
Reply
- Alexis says
  August 6, 2016 at 10:24 pm
  Oh I love that you added the a chain strap to the clutch! So fun! Thanks so much, Willow. 🙂
  Reply
Deborah Zotian says
August 9, 2016 at 12:46 pm
Beautiful scarf. Adding it to my ‘stash’ for holiday gifts. (And probably one for myself, too.) Got your link from the Moogly site – so glad I did.
Reply
Ginger says
August 11, 2016 at 10:42 pm
I can’t wait to try this It’s beautiful! I’m somewhat new, but I’m going for it! Thanks so much for sharing!
Reply
Tiffany says
March 9, 2017 at 9:06 am
I love this pattern so much and signed up for newsletter! I am new to the crochet world, would you say the size of this piece would be ok for a child? My daughter is 7 and would LOVE this!! Not sure if I should make it as is and let her grow into it, or attempt to make it slightly smaller… Thoughts?
P.S. This might be our 1st mommy and me piece b/c I really love it too! lol
Reply
- Alexis says
  March 9, 2017 at 9:30 am
  Hi Tiffany!
  You can definitely adjust the size of the scarf by just changing up the number of the diamond motifs. So, I would recommend making a few of the diamonds, and laying them out to get an idea of the size. That said, it’s not a huge scarf, so I don’t think it would be too big for her as is, although I might remove one diamond from each end to shorten it up. (P.S. I have a seven year old daughter too!) Hope that helps! 🙂
  Reply
Kriket says
June 10, 2017 at 9:42 pm
Hello, This looks great 🙂 Can you give us the length & width of each of the different motifs please? Thank you.
Reply
Julie says
June 15, 2017 at 5:25 pm
Hi Alexis! I live in Texas so this scarf is perfect! I had to stop in and thank you for such a creative design and RAVE about your pattern writting skills! It is exciting to be able to recreate such lovely designs. I appreciate the time and energy that went into making, hooking, writing, and publishing The Trillium Shawl! Thank you! If I understood social media and all the, ‘tag me in ..’ and ‘hashtag” language I would send you a picture of mine made in plum and linen. Lol Bless You!
Reply
- Alexis says
  June 19, 2017 at 11:05 am
  Hi Julie! Thank you so much for your sweet comments, it truly made my day. 🙂 I would love, love to see a photo of your shawl! You can tag me on instagram or post it on my facebook page, or if you aren’t big on social media, you can just email it to me at alexis (at) persialou.com. Thank you again! 🙂
  Reply
MC Salander says
January 28, 2018 at 8:45 am
This is a lovely scarf! I’m a left-handed person. Are the instructions the same or do I need to flip the pieces over when assembling? Thanks for sharing this!
Reply
Claire says
December 28, 2018 at 11:54 pm
I’ve just started making this scarf and am enjoying it tremendously, it’s a great project for keeping my hands busy on hot summer days and evenings as it’s not hot to work with the cotton and the small motifs. I’m looking forward to the finished result. Thanks for sharing,
Reply

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The Trillium: Geometric Triangle Scarf Crochet Pattern