Crochet Heart Baby Cardigan Pattern Free For 0 To 12 Months Old

This Baby Heart Cardigan is a modular crochet cardigan made from Granny Heart squares, designed for babies from 0 to 12 months. The video demonstrates the 0 to 3 month size, built from eight larger heart squares for the body and four smaller squares for the sleeves. After joining the motifs, you add half double crochet rounds to fine tune the chest width and shape the front opening.

Crochet Heart Cardigan

The cardigan is finished with clean single crochet edging, a soft collar that flares gently with small increases, and simple front ties instead of buttons. Because the fit is controlled by square size and a few adjustable border rows, this pattern is easy to customize for different ages, yarns, and color layouts while keeping the heart motif as the main feature.

Materials

• 100 percent acrylic yarn approximately 70 g
• 3.0 mm crochet hook for motifs and body shaping
• 2.5 mm crochet hook for neat edging and collar if you want a firmer finish
• Scissors
• Stitch markers
• Yarn needle

Notes and Sizing Method

• Demonstrated size is 0 to 3 months
• Target chest width for 0 to 3 months is approximately 23 cm across the finished body panels
• Cardigan body is built from 8 large Granny Heart squares
• 4 squares joined into the back panel
• 2 squares joined into the left front panel
• 2 squares joined into the right front panel
• Sleeves are built from 4 smaller Granny Heart squares
• 2 squares per sleeve
• To size up
• Make the heart squares larger by adding extra rounds
• Or keep the same square size and add extra HDC border rows
• Or do both for the next size range
• Aim for straight, matching edges
• If your squares curl, block them lightly before assembly

Abbreviations

• Ch chain
• Sl st slip stitch
• SC single crochet
• HDC half double crochet
• DC double crochet
• Sp space

Fabric and Tension Tips

• Keep motif corners consistent so joining lines match
• When joining motifs, keep tension loose enough to avoid puckering
• When adding HDC borders, count stitches at the end of each row so both front panels match

Part 1 Granny Heart Squares

You will make two types of squares

• Large squares for body
• Make 8 identical large heart squares
• The sample uses 3 rounds per square
• Finished square size is approximately 10 cm
• Small squares for sleeves
• Make 4 identical small heart squares
• These are slightly smaller than body squares
• Keep the same heart look but reduce size by using fewer rounds or smaller final round

Square Checklist Before Assembly

• All 8 body squares are the same size
• All 4 sleeve squares are the same size
• Corners are clearly defined
• Each square has the same number of stitches per side

Joining the Motifs for the Body

The tutorial uses a zig zag slip stitch join that creates a decorative, flat seam.

Back Panel Layout

• Arrange 4 large squares in a 2 by 2 grid
• Hearts facing up and oriented the same way
• The back panel should be a neat rectangle made of 4 squares

Join Back Panel

• Place two squares side by side with edges touching
• Insert hook through matching back loops or matching corner spaces
• Slip stitch along the entire edge to join
• Continue joining until all 4 squares form one panel

Front Panel Layout

• Left front uses 2 large squares stacked vertically
• Right front uses 2 large squares stacked vertically
• Hearts facing up and aligned

Join Front Panels

• Join the two squares for each front panel using the same zig zag slip stitch seam
• Ensure both front panels are the same height

Adjusting Width with HDC Borders

This step fine tunes the chest width to reach approximately 23 cm for 0 to 3 months.

Back Panel Border

Use 3.0 mm hook.

• Attach yarn at any corner of the back panel
• Work HDC evenly around the entire outer edge of the back panel
• Place extra stitches at corners so the border lies flat
• Work 2 HDC in each corner space if needed

Row 1

• Work HDC around
• Join with sl st
• Ch 1 and turn

Row 2

• Work HDC around
• Join with sl st
• Ch 1 and turn

For Row 3

• Work HDC around
• Join with sl st
• Fasten off

Front Panel Borders

Use 3.0 mm hook.

You will add 2 HDC rows to each front panel, but keep the center opening clean.

• Attach yarn at bottom of front panel edge
• Work HDC evenly around the outer edges of that front panel
• Do no
• the inner edge straight and neat

Row 1

• t join across the inner front opening edge yet
• Keep
• Work HDC around outer edges
• Turn at the top and continue down
• Keep corners smooth with extra stitches if needed

Row 2

• Repeat HDC evenly
• Fasten off

Measurement Check

• Lay left front, back, and right front flat
• Arrange them as they will sit when worn
• Measure chest width across the combined piece
• Stop adding border rows when chest width reaches approximately 23 cm

Part 4 Joining Shoulders and Sides

Join Shoulders

• Place back panel and two front panels together as a cardigan shape
• Align the top edges of the left front and back
• Align the top edges of the right front and back
• Use SC to join shoulder seams
• Shoulder seam steps
• Attach yarn at one shoulder edge
• Work SC through both layers across the shoulder
• Stop to leave a neckline opening in the center
• The tutorial leaves about 9 cm open for the neck
• Repeat on the other shoulder

Join Side Seams

• With cardigan inside out, align side edges
• Sew or slip stitch from the bottom hem upward
• Stop to leave the armhole opening
• The tutorial leaves about 10 cm open for the armhole
• Side seam steps
• Attach yarn at bottom corner
• Work SC or sl st through both layers up the side
• Stop when armhole opening is reached
• Fasten off
• Repeat for the other side

Sleeves

Each sleeve is made from 2 small heart squares plus added HDC rounds for length.

Join Sleeve Motifs

• For sleeve 1, join 2 small heart squares together
• Use the zig zag slip stitch seam
• Repeat for sleeve 2

Form Sleeve Tube

• Fold sleeve panel so short edges meet
• Join the sleeve seam to form a tube
• Use sl st or SC seam
• Leave top opening for attaching to cardigan

Add Sleeve Length

Use 3.0 mm hook.

• Attach yarn at the sleeve opening edge
• Work HDC evenly around the opening in joined rounds
• Join each round with sl st
• Ch 1 and turn after joining to keep texture consistent
• Continue rounds until sleeve length from top to cuff is 15 cm
• Tutorial indicates about 13 rows

Decorative Cuff Round

• Work one final round of HDC evenly
• Keep tension slightly snug so cuff sits nicely
• Fasten off

Attach Sleeves

• Turn cardigan inside out
• Turn sleeve inside out
• Insert sleeve into armhole so right sides face together
• Sewing steps
• Match sleeve seam to cardigan side seam
• Pin or mark quarter points with stitch markers
• Sew sleeve to armhole using SC or whip stitch with needle
• Work evenly to avoid gathers
• Fasten off
• Repeat for second sleeve

Edging and Front Opening Finish

Use 2.5 mm hook for a cleaner edge if desired.

Main Edging

• Attach yarn at bottom front corner
• Work SC evenly around
• Up the first front opening
• Around neckline edge
• Down the other front opening
• Along the bottom hem
• Add extra SC at corners if the edge pulls
• Join with sl st and fasten off

Collar

The collar is worked into the front loops of the neckline to create a lifted edge.

Use 2.5 mm or 3.0 mm hook depending on how firm you want it.

Collar Setup

• Attach yarn at neckline
• Work into the front loops only around the neck opening

Collar Row 1

• Ch 2 to start
• Work DC around neckline
• Add small increases so collar flares gently
• Work 2 DC in every 3rd or every 4th stitch
• Join with sl st
• Ch 2 and turn

For Collar Row 2

• Work DC around
• Repeat increases as needed
• Keep collar laying flat without ruffling
• Join with sl st

Collar Row 3 Decorative Edge

• Ch 1
• Sl st in next stitch
• Repeat ch 1, sl st in next stitch around
• Join and fasten off

Part 9 Front Ties

You will make 2 ties.

Tie 1

• Attach yarn to inside edge of one front panel where you want the tie
• Ch 40 to make approximately 19 cm
• Work SC back down the chain
• Fasten off

Tie 2

• Repeat on the other front panel at matching position

Finishing

• Weave in all ends securely
• Check seams for gaps
• Lightly steam block if needed
• Confirm sleeves hang evenly and collar lies flat
• Your Baby Heart Cardigan is complete

Customization Options

Make It Bigger

• Add one more round to each heart square for the next size
• Or add 1 to 3 extra HDC border rows to the panels
• Recheck chest width after each change

Change the Sleeve Fit

• For wider sleeves, add extra stitches evenly in the first sleeve round
• For narrower sleeves, reduce a few stitches evenly across the first sleeve round

Color Planning

• Use one color for a clean modern look
• Use a contrasting heart color for a bold motif
• Alternate square borders for a patchwork effect