Introducing the Heartstrings Mosaic Blanket, a charming and versatile design perfect for both babies and as a cozy throw. Created using the overlay mosaic crochet technique, this crochet heart blanket is beginner-friendly yet engaging for experienced crocheters, featuring a simple repeat and soothing half-double crochets throughout.

Crocheted with Mary Maxim Maximum Value Yarn, this blanket is not only soft and beautiful but also durable and easy to care for—machine washable and dryable for everyday convenience. While the pattern does not include the throw size, I will provide tips for making a larger blanket. Additionally, it includes instructions for making a charming coaster, making it a delightful addition to your crochet projects.
To guide you through every stitch, a step-by-step video tutorial is included for the coaster. The blanket is finished with a lovely picot stitch border, adding a delicate and elegant touch.
Table of Contents
Create a heartfelt, handmade treasure with this crochet heart blanket pattern—perfect for gifting or adding warmth and love to your own home.
Crochet Heart Blanket and Coaster
This easy crochet heart blanket is like a two-in-one! When I first made a swatch to test how the heart pattern would work up, I realized it was the perfect size for a coaster. Naturally, I had to make a set of coasters to use around the house for Valentine’s Day! The blanket itself is so quick to work up—it only took me two days to complete. It features an adorable row of hearts at the bottom, while the rest of the blanket is made with fast and simple half double crochet stitches.
This baby blanket is perfect for the little ones in your life. My granddaughter was due for a new blanket as she’s growing so quickly, and this design is the perfect toddler-sized blanket. You can never have too many blankets! If you’d like to make a larger version, I’ve included tips for increasing the size to suit your needs.
While this pattern is classified as intermediate, the mosaic design is surprisingly simple. If you’ve never tried mosaic crochet or have felt intimidated by it, this pattern is the perfect one to start with! It features a very easy-to-follow repeat. Plus, you don’t have to commit to making the entire blanket if you’re unsure—why not try making a coaster first as a tester? These coasters are a fantastic stash-busting project, perfect for using up scrap yarn. If you decide to move on to the full blanket, you’ll find that this mosaic repeat is much simpler compared to others, making it an enjoyable and approachable project.
Size:
Blanket: 32″ x 36″
Coaster: 5″ x 5″
Skill Level
Gauge
Blanket
Mosaic: 7 sts and 7 rows equal to 2″ in mosaic pattern with 5mm hook
Half Double Crochet: 7 sts and 5.5 rows equal to 2″ in hdc with 4.5mm hook
Coaster
Suitable Yarn Substitutes
Crochet Hooks Required
Abbreviations
Ch – Chain
Dc – Double Crochet
Flo – Front Loop Only
Hdc – Half Double Crochet
Rep – Repeat
RS – Right Side
Rev – Reverse
Sc – Single Crochet
Sk – Skip
Sl St – Slip Stitch
Sp(s) – Space(s)
St(s) – Stitch(es)
WS – Wrong Side
( ) – Work step in parentheses in indicated stitch
Special Stitches:
Mdc – Mosaic Double Crochet – Work a double crochet in the front loop of the stitch 2 rows below.
Seamless Join – After the last stitch of the round, fasten off. With a yarn needle, weave under both loops of the first st, then weave through the blo of the last stitch. Weave in tail.
Video for the Crochet Heart Blanket & Coaster
YouTube: https://youtu.be/we1BrZ3aN3M
Heartstrings Baby Blanket & Coaster
COPYRIGHT
Pattern Support
Coaster Only
Row 14:
With A, put a slip knot on hook, 1 sc in each st across, ch 1, cut A and weave in tails. Proceed to the border.
Blanket Only
Row 14:
Change to smaller hook. With A, put a slip knot on hook, 1 hdc in each st across, turn.
Rows 15-89:
Ch 1, 1 hdc in each st across, turn.
Row 90-100:
Change to larger hook. Rep rows 2-13.
Row 101:
With smaller hook and A, put a slip knot on hook, 1 sc in each st across, ch 1, cut A. Weave in ends.
Border:
Slip Stitch Round:
RS facing With B and smaller hook (use the larger hook if needed to keep sts loose), join yarn in any st along the top edge. Loosely sl st across to corner, at corner ch 2, turn and sl st in each row along the side (for blanket hdc rows work 3 sl sts per 2 rows); at corner ch 2, turn and sl st in each st across the bottom; at corner ch 2, turn and sl st in each row along the side (for blanket hdc rows work 3 sl sts per 2 rows), at corner ch 2, turn and sl st in each st across, cut yarn. Join with the seamless join method. Weave in tails.
Round 2:
Put a slip knot on the hook and join to the blo of any st, ch 1, work 1 sc in the blo of each sl st around, at corner ch-sp work (sc, ch 2, sc), sl st in starting ch-1 to join. Coaster skip to picot edge.
Blanket Only
Round 3:
Ch 1, work 1 sc in each st around, at corner ch-sp work (sc, ch 2, sc), sl st in charting ch-1 to join.
Picot Edge
Round 4:
Ch 1 (sc, ch 3, sc) in same first st, sk next st, *(sc, ch 3, sc) in next st, sk next st; rep from * around working (sc, ch 3, sc) in corner ch-sps, sl st in first sc to join. Fasten off and weave in tails.
Finishing:
The yarn may seem a little stiff before washing. Washing will significantly soften the yarn. Wash and dry per the yarn label directions, or you may block the blanket if preferred. Enjoy!
Looking for Pattern Support?
Head over to my Facebook Community Group to ask any questions about this pattern, share photos of your MJ’s Designs, and cheer on fellow crocheters!
Our group has a vibrant and supportive community of experienced crocheters who have made various MJ patterns. They are always eager to offer guidance and share their experiences, so don’t hesitate to reach out and connect with them.
Thank you for joining our community, and happy crocheting!
I hope you love our Free Crochet Heart Blanket Pattern. You might also love these free crochet patterns!
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