The Mosaic Triangle Baby Blanket features a stunning geometric design that babies and parents will love! This mosaic crochet baby blanket makes a thoughtful gift, an eye-catching addition to a nursery, and a soothing comfort item for the littlest ones.

The gorgeous triangle pattern in this baby blanket is created using overlay mosaic crochet, a deceptively easy technique where you only use one color per row. Even better, you don’t have to worry about weaving in your ends because you’ll hide them all inside the envelope border.

At 24 x 36 inches, this small blanket would be an ideal first mosaic crochet afghan to try. Its simple repeat is a great way to practice the technique. Plus you’ll end up with a warm and meaningful gift that will bring much needed comfort to babies and their parents. Don’t have a baby in your life? This would also be a lovely charity crochet project to donate to a local NICU or family in need.

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What is overlay mosaic crochet?

I have written this whole post with the assumption that you all know what mosaic crochet means.

Overlay Mosaic Crochet is a technique that requires you to work in the BLO (back loop only) and then drop down to pick up the front loop of stitches from lower rows which creates textured stitches that lay over the stitches from previous rows and can be used to create wonderfully intricate patterns.

These patterns are worked in one direction only, fastening off the working yarn at the end of each row, and beginning again at the beginning of the piece — no turning involved. Each new row consists of only ONE color, but with the use of the sc and drop down dc stitches, you get the mosaic design. Most overlay mosaic patterns come with a chart. The symbols on the chart tell you when to use a dc and when to use the special drop down dc.

It seems complicated, but I promise, it’s super easy (and addictive) as you go.

Visit this blog post for a basic overview of the technique

Feel free to watch the video below to familiarize yourself a bit with the technique.

Please SUBSCRIBE to my channel, comment that you joined in from the Mosaic in a Month CAL, and like the videos. Thank you so much!

Mosaic YouTube Playlist

I have created a playlist on YouTube with even more videos about working overlay mosaic crochet patterns. Click here to access.

Need More Inspiration for Crochet Baby Gifts?

Here are some other great crochet baby blankets and gifts that I have designed.

Simple Ombre C2C Baby Blanket

Piper’s Blankie

Blue striped knitted blanket draped over a leather couch with a teddy bear.

JJ’s Blankie

Where to Find the Mosaic Triangles Baby Blanket Pattern

Mosaic Triangles Baby Blanket displayed in a basket

If you would like an ad-free, printable version of the Mosaic Triangles Baby Blanket pattern, you can download it instantly from my shop. (From there, you will be able to add the pattern to your Ravelry product library). You can also purchase the pattern from Etsy or Ravelry using the links below. Purchasing my inexpensive patterns really helps me be able to keep making patterns for other crocheters to enjoy. Thank you for supporting my small business!

Purchase the Pattern from the Juniper & Oakes Shop

Purchase from Ravelry Purchase from Etsy See it on Gosadi

The Yarn: Worsted

This mosaic crochet baby blanket is made from Hobbii Daily Stitch Acrylic (100% acrylic). This versatile yarn is durable, soft, and affordable. It comes in lots of beautiful colors, so you can put together a color combo to complement any nursery. Be sure to share pictures in my FB group so we can see what you come up with!

Mosaic Triangles Baby Blanket WIP with hooks and yarn

The Hook: 4mm

I used an G/4.00 mm hook to make my blanket.

Free Pattern Mosaic Triangles Crochet Baby Blanket

Materials

Yarn: 1910 yards of worsted weight (#4) yarn
- I used Hobbii Daily Stitch Worsted (100% Acrylic, 382 yd / 350 m in 3.53 oz 100 g)
  - Color A: White – 2 skeins
  - Color B: Teal – 1 skein
  - Color C: Antique Rose – 1 skein
  - Color D: Gray Melange – 1 skein
Hook: G/4.00 mm (I love my Furls Streamline Metal hook)
Yarn needle
Scissors

Gauge

19 Rows x 22 Stitches in a 4″ x 4″ square.

Finished Measurements

Approximately 24″ x 36″

The size of your blanket may vary slightly, depending on many factors: yarn, hook, tension, etc.

Stitch Abbreviations

(US Terminology)

BLOsc – Back Loop Only Single Crochet
ch – Chain
FLOdc – Front Loop Only Double Crochet
Fsc – Foundation single crochet
RS – Right Side

Notes:

Pattern is worked from right to left on RS only. (If you are left handed, feel free to work from left to right according to the chart below).
Every row is worked in a different color.
Fasten off at the end of each row, and begin again on the right-hand side of the RS.
Each row begins with 1 border stitch, has a repeat of stitches, and 1 border stitch at the end.
The patterns include written instructions and a chart.
The colors on the chart indicate how the finished project will look.
You may choose to make your Foundation Row the traditional way by chaining, then adding your sc on top. Be sure to make one additional chain than the number of stitches needed for your project.
The design is one-sided. To make it reversible, follow the tutorial in THIS video.
Please join the Juniper & Oakes Crochet Community FB Group and share pictures & questions.

Special Stitches

Check out this tutorial to learn the basics of overlay mosaic crochet.

BLOsc: single crochet made in the back loop of the stitch in the row below

FLOdc: double crochet made in the front loop of the stitch 2 rows below

Beginning Border Stitch (BBS) A standing sc through the post (or the ‘v’) of the stitch
below, ensuring that both legs of the stitch on the WS are to the outside of the project. (For right-handed crocheters the legs would be secured to the right of the stitch and vice versa for left-handed crocheters.)

Ending Border Stitch (EBS) A sc through the post (or the ‘v’) of the stitch, ensuring that both legs of the stitch on the WS are to the outside of the project. (Similar to BBS, but the back legs of the stitch are secured to the opposite side.)

Access the Free Pattern

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Crochet Chart for the Mosaic Triangles Baby Blanket

Written Instructions

Row 1: With Color A, FSC 123.

Row 2: With Color B, BBS in 1st, BLOsc across, EBS in last.

Row 3: With Color A, BBS in 1st, *BLOsc X1, FLOdc X1, BLOsc x9, FLOdc*, repeat across, BLOsc x1, EBS in last.

Row 4: With Color B, BBS in 1st, *FLOdc X1, BLOsc x2, FLOdc x7, BLOsc x2*, repeat across, FLOdc x1, EBS in last.

Row 5: With Color A, BBS in 1st, *BLOsc x2, FLOdc X1, BLOsc x7, FLOdc X1, BLOsc*, repeat across, BLOsc x1, EBS in last.

Row 6: With Color B, BBS in 1st, *FLOdc x2, BLOsc x2, FLOdc x5, BLOsc x2, FLOdc*, repeat across, FLOdc x1, EBS in last.

Row 7: With Color A, BBS in 1st, *BLOsc x3, FLOdc X1, BLOsc x5, FLOdc X1, BLOsc x2*, repeat across, BLOsc x1, EBS in last.

Row 8: With Color B, BBS in 1st, *FLOdc x3, BLOsc x2, FLOdc x3, BLOsc x2, FLOdc x2*, repeat across, FLOdc x1, EBS in last.

Row 9: With Color A, BBS in 1st, *BLOsc x4, FLOdc X1, BLOsc x3, FLOdc X1, BLOsc x3*, repeat across, BLOsc x1, EBS in last.

Row 10: With Color B, BBS in 1st, *FLOdc x4, BLOsc x2, FLOdc X1, BLOsc x2, FLOdc x3*, repeat across, FLOdc x1, EBS in last.

Row 11: With Color A, BBS in 1st, *BLOsc x5, FLOdc X1, BLOsc X1, FLOdc X1, BLOsc x4*, repeat across, BLOsc x1, EBS in last.

Row 12: With Color B, BBS in 1st, *BLOsc x12*, repeat across, BLOsc x1, EBS in last.

Row 13: With Color A, BBS in 1st, *BLOsc x5, FLOdc X1, BLOsc X1, FLOdc X1, BLOsc x4*, repeat across, BLOsc x1, EBS in last.

Row 14: With Color B, BBS in 1st, *FLOdc x4, BLOsc x2, FLOdc X1, BLOsc x2, FLOdc x3*, repeat across, FLOdc x1, EBS in last.

Row 15: With Color A, BBS in 1st, *BLOsc x4, FLOdc X1, BLOsc x3, FLOdc X1, BLOsc x3*, repeat across, BLOsc x1, EBS in last.

Row 16: With Color B, BBS in 1st, *FLOdc x3, BLOsc x2, FLOdc x3, BLOsc x2, FLOdc x2*, repeat across, FLOdc x1, EBS in last.

Row 17: With Color A, BBS in 1st, *BLOsc x3, FLOdc X1, BLOsc x5, FLOdc X1, BLOsc x2*, repeat across, BLOsc x1, EBS in last.

Row 18: With Color B, BBS in 1st, *FLOdc x2, BLOsc x2, FLOdc x5, BLOsc x2, FLOdc*, repeat across, FLOdc x1, EBS in last.

Row 19: With Color A, BBS in 1st, *BLOsc x2, FLOdc X1, BLOsc x7, FLOdc X1, BLOsc*, repeat across, BLOsc x1, EBS in last.

Row 20: With Color B, BBS in 1st, *FLOdc X1, BLOsc x2, FLOdc x7, BLOsc x2*, repeat across, FLOdc x1, EBS in last.

Row 21: With Color A, BBS in 1st, *BLOsc X1, FLOdc X1, BLOsc x9, FLOdc*, repeat across, BLOsc x1, EBS in last.

Rows 22-41: With Colors A & C, Repeat Rows 2-21.

Rows 42-61: With Colors A & D, Repeat Rows 2-21.

Rows 62-181: Repeat Rows 2-61.

Envelope Border

Back Border

Round 1: With Color A, sc in the FLO of any stitch along the bottom of blanket, sc in FLO in each stitch. In each corner, *sc in FLO, ch 2, sc in FLO.* Along the side, sc through both legs of the border stitches. Invisible join to first stitch. (see below)

Round 2: With Color A, Ch 1, BLOsc in each stitch around. In each corner ch-2 space, *BLOsc, ch 2, BLOsc* in each corner. Invisible join to 1st stitch.

Round 3: Repeat Round 2

Invisible Join

Work last stitch, Remove hook from loop, Insert hook through back of 1st stitch of row, Grab dropped loop, Pull yarn loop though, Untangle hook & yarn.

Front Border

Rounds 1-3: With Color A, Repeat Rounds 1-3 of Back Border. Fasten oﬀ.

Finishing

Secure ends by tying two together along each side.

Trim ends to about 1inch in length.

With Color B, BLOsc through BOTH borders. (The loops that are closest together on the blanket), ensuring that the ends are enclosed in the envelope border.

Fasten off.

Weave in (or hide) all ends.

Ready, Set… CROCHET!

Action Items:

Work up the Mosaic Triangles Crochet Baby Blanket
Post a picture of your finished blanket in the J&O FB Group

If you have any issues, questions, or tips, please post them on the J&O FB Group.

Preemie Crochet Challenge 2025

You can find the full details on the Sunflower Cottage Crochet website. But briefly, Helen of Sunflower Cottage Crochet is hosting blog hop throughout the month of September 2025. Every day in September, she will be posting a new pattern perfect for gifting to a preemie baby – give it to a NICU baby, or other similar charity! Each download you are promising to make and donate one item.

Until the end of September 2025, you can download the printer-friendly PDF pattern for the Mosaic Triangles Baby Blanket for FREE on Ravelry! Use the button below to download your free pattern. Enter the coupon code PREEMIE2025 at checkout.

In all, she will be sharing 30 beautiful designs by different talented crochet designers. Each design will be offered free for one day only (or many will offer it free for the whole month). So make sure to check the blog hop roundup post daily to find each pattern link and coupon code.

Definitely post pictures and share about the blog hop on any social media you have. When you make this blanket, be sure to tag me @juniperandoakes and use #juniperandoakes so we can see your progress!

Fine Print

This pattern and its images are the property of Juniper and Oakes ©2025. The pattern is for your personal use only. Please do not copy/paste, distribute, or alter and claim as your own. You may sell products made by this pattern, but please credit @juniperandoakes and remember to link back to juniperandoakes.com or credit Juniper & Oakes on the craft fair tag.

You may post pictures on social media and tag @juniperandoakes and use the hashtags #juniperandoakes. If you make this pattern, please email a picture to [email protected] and I will include it in a gallery on my website. You can also post pictures on my Facebook Page, or in the Juniper + Oakes Crochet Community Facebook Group.