Heart Baby Blanket Free Knitting Pattern (+ Premium PDF Option)

There is something quietly magical about knitting a blanket for a baby. Every stitch is a small act of love, a quiet wish for warmth and comfort for a little person who has not yet arrived in the world. And when you shape those stitches into hearts — the universal symbol of love — the whole project takes on a tenderness that is hard to put into words. This heart baby blanket knitting pattern is designed with that feeling in mind: soft, simple enough for an adventurous beginner, and beautiful enough to become a treasured heirloom.

Whether you are knitting for your own baby, for a friend’s baby shower, or simply because you love the meditative rhythm of needles and yarn, this pattern will guide you through every step. A free written version is available right here, and a premium printable PDF with extra stitch charts, sizing variations, and care instructions is available for a small fee if you want everything in one tidy package.

Let’s dive in.

Why Knit a Heart Baby Blanket?

Blankets are one of the most beloved and practical gifts you can knit for a new baby. Unlike clothing, a blanket does not need to fit precisely. It grows with the baby, works in every season layered differently, and carries the memory of the hands that made it long after the yarn has softened with washing. A heart motif adds that extra layer of meaning — hearts are timeless, gender-neutral, and visually striking without being complicated to knit.

This pattern uses a relatively simple technique called a slip stitch colorwork method for the hearts, which means you will never be working with more than one color at a time per row. If you have been wanting to try colorwork but felt intimidated by stranded knitting or carrying floats, this pattern is a wonderful entry point. The hearts emerge cleanly, the fabric lies flat, and the result looks far more impressive than the effort required.

About This Pattern

Skill Level: Beginner-Friendly Intermediate. You should be comfortable with knit, purl, and slipping stitches. No advanced techniques are required.

Finished Measurements: Approximately 30 inches wide by 36 inches long (a generous crib blanket size). Instructions for a smaller stroller/carrier size (22 x 28 inches) and a larger receiving blanket (36 x 45 inches) are included in the paid PDF version.

Gauge: 20 stitches and 28 rows = 4 inches in stockinette stitch on US size 7 (4.5mm) needles. Always knit a gauge swatch. Gauge affects the finished size significantly when knitting a large project like a blanket.

Yarn: Approximately 800–900 yards of DK weight yarn in your main color (MC), and 200–250 yards in your contrast color (CC) for the hearts. Choose a yarn that is soft against baby skin, easy to wash, and durable. Superwash merino, cotton-acrylic blends, and bamboo blends all work beautifully.

Yarn Suggestions: Paintbox Yarns Simply DK, Lion Brand Baby Soft, Cascade 220 Superwash Sport (held double), or any DK weight yarn that meets gauge.

Needles: US size 7 (4.5mm) circular needles, 32 inches or longer (for holding all the stitches comfortably, even though you knit flat).

Notions: Tapestry needle for weaving in ends, stitch markers (optional but helpful), scissors.

Pattern Notes

Before you cast on, take a moment to read through these notes. They will save you confusion later.

The blanket is knit flat, back and forth in rows, even though you are using circular needles. Circular needles are recommended simply because a blanket has a lot of stitches and they are much more comfortable to hold than long straight needles.

The hearts in this pattern are worked using a slip stitch method. When you see “sl1wyif,” that means slip one stitch with the yarn held in front of your work. When you see “sl1wyib,” slip one stitch with the yarn held in the back. These small details are what create the heart shapes, so do pay attention to the yarn position.

The border is worked in seed stitch on all four sides to keep the edges neat and prevent rolling. The first and last four stitches of every row, as well as the first and last four rows at each end of the blanket, are worked in seed stitch regardless of what the main pattern calls for. This is noted within the written pattern, but it is worth keeping in mind as you go.

You will use a slip stitch at the beginning of every row to keep your selvedge edges tidy. This is not counted in the stitch count — it is simply a finishing technique that makes seaming or blocking much easier.

Abbreviations

CO — cast on
BO — bind off
k — knit
p — purl
sl1wyif — slip 1 stitch purlwise with yarn in front
sl1wyib — slip 1 stitch purlwise with yarn in back
MC — main color
CC — contrast color
RS — right side
WS — wrong side
rep — repeat
pm — place marker
sm — slip marker
st(s) — stitch(es)

Cast On

Using MC and the long-tail cast on method, CO 152 stitches.

The long-tail cast on creates a neat, elastic edge that looks polished and holds its shape through washing. If you prefer a different cast on method you are comfortable with, feel free to substitute it.

Seed Stitch Border Setup

Rows 1–4 (all border rows):
*K1, p1; rep from * to end of row.

Work these four rows in seed stitch before beginning the heart pattern. This establishes your bottom border. After completing Row 4, you are ready to begin the main blanket body.

Heart Chart Placement Setup

The heart motif repeat is 18 stitches wide and 20 rows tall. Across the main body of the blanket (after setting aside 4 border stitches on each side), you will have 144 stitches for the main pattern area, which accommodates exactly 8 full heart repeats across.

If your stitch count is slightly different due to gauge, you can adjust by adding or subtracting stitches in increments of 18 for each heart repeat, keeping at least 4 stitches on each edge for your seed stitch border.

The Heart Motif (Written Instructions)

The heart motif is worked over 18 stitches and 20 rows. A complete chart is included in the paid PDF version, but the following written instructions will allow you to work the pattern directly from this page.

For the heart rows, the four seed stitch border stitches at each edge are not written into the heart repeat instructions. Simply work your 4-stitch seed border, then work the heart repeat across, then work your 4-stitch seed border at the end of each row.

Row 1 (RS, MC): Knit across all 18 sts.
Row 2 (WS, MC): Purl across all 18 sts.
Row 3 (RS, CC): K8, sl1wyib, k1, sl1wyib, k7.
Row 4 (WS, CC): P7, sl1wyif, p1, sl1wyif, p8.
Row 5 (RS, MC): K7, sl1wyib, k3, sl1wyib, k6.
Row 6 (WS, MC): P6, sl1wyif, p3, sl1wyif, p7.
Row 7 (RS, CC): K6, sl1wyib, k5, sl1wyib, k5.
Row 8 (WS, CC): P5, sl1wyif, p5, sl1wyif, p6.
Row 9 (RS, MC): K5, sl1wyib, k7, sl1wyib, k4.
Row 10 (WS, MC): P4, sl1wyif, p7, sl1wyif, p5.
Row 11 (RS, CC): K4, sl1wyib, k9, sl1wyib, k3.
Row 12 (WS, CC): P3, sl1wyif, p9, sl1wyif, p4.
Row 13 (RS, MC): K3, sl1wyib, k11, sl1wyib, k2.
Row 14 (WS, MC): P2, sl1wyif, p11, sl1wyif, p3.
Row 15 (RS, CC): K4, sl1wyib, k9, sl1wyib, k3.
Row 16 (WS, CC): P3, sl1wyif, p9, sl1wyif, p4.
Row 17 (RS, MC): K5, sl1wyib, k3, sl1wyib, k1, sl1wyib, k3, sl1wyib, k4.
Row 18 (WS, MC): P4, sl1wyif, p3, sl1wyif, p1, sl1wyif, p3, sl1wyif, p5.
Row 19 (RS, CC): K6, sl1wyib, k1, sl1wyib, k3, sl1wyib, k1, sl1wyib, k5.
Row 20 (WS, CC): P5, sl1wyif, p1, sl1wyif, p3, sl1wyif, p1, sl1wyif, p6.

After completing Row 20, work two plain rows in MC (knit on RS, purl on WS) as a spacer before beginning the next heart repeat. This gives the design visual breathing room and makes the hearts pop.

Repeat this 22-row sequence (20 heart rows + 2 spacer rows) across the length of the blanket until you have worked approximately 5 full vertical repeats, or until the blanket measures approximately 32 inches from the cast-on edge (not counting your border rows). End after completing a full repeat.

Top Border

Work 4 rows of seed stitch (*k1, p1; rep from * to end) to mirror the bottom border.

Bind Off

Using MC, bind off all stitches in pattern (working k1, p1 as set by the seed stitch for the border stitches, and knitting across the main body stitches).

Bind off loosely. A tight bind-off on a baby blanket looks puckered and can cause the edge to pull in. If you tend to bind off tightly, go up one needle size for the bind-off row only.

Finishing

Weave in all ends carefully using a tapestry needle. Weave each end in at least two directions to secure it, as baby blankets go through many washes and you do not want any ends working loose.

Block the finished blanket by soaking it in cool water with a small amount of wool wash (even if your yarn is not wool, a gentle wash helps relax the fibers). Gently squeeze out the water without wringing, roll the blanket in a clean towel to remove excess moisture, then lay it flat on a blocking mat or clean surface. Pin or coax the edges into straight lines and even corners, and allow it to dry completely before removing.

Blocking transforms hand-knits. The stitches even out, the fabric softens, and the hearts will look sharper and more defined after their first blocking.

Upgrade to the Premium PDF Pattern

If you would like a beautifully formatted version of this pattern that you can print, save, and refer to at your knitting chair without scrolling through a screen, the premium PDF is available for purchase. The paid version includes a full stitch chart for the heart motif (ideal if you are a visual learner), three size variations with adjusted stitch counts and yardage, a color suggestions guide with photos, tips for substituting yarn weights, and a care card you can print and attach to the finished blanket as a gift tag. It is formatted for easy printing on standard letter and A4 paper.

The PDF is delivered instantly to your inbox after purchase, so you can be casting on within minutes.

Tips for Choosing the Perfect Yarn

Yarn choice makes an enormous difference in how a baby blanket looks, feels, and wears over time. Here are a few things to consider before you wind your first skein.

Softness is the most important quality for anything touching a newborn’s skin. Hold the yarn against your cheek or the inside of your wrist before buying. If it scratches or prickles even slightly, it will be uncomfortable for a baby. Superwash merino is a popular choice because it is naturally soft, temperature-regulating, and machine washable — a genuine blessing for tired new parents.

Washability is non-negotiable for a baby item. New parents do not have time for hand-washing and laying flat to dry every single day. Choose a yarn that can go in the washing machine on a gentle cycle. Any superwash treated wool, most cotton blends, and most acrylic yarns qualify.

Color fastness matters too. Bold contrast colors are gorgeous in this pattern, but make sure your CC yarn is colorfast. Some deeply saturated yarns bleed when wet, which can tint the main color permanently. When in doubt, wash a small swatch of the CC yarn alone before knitting the whole blanket.

DK weight is the sweet spot for this pattern. It creates a fabric that is substantial and warm without being so thick that the blanket becomes heavy or stiff. Fingering weight will produce a finer, more delicate blanket (and require more yardage), while worsted weight will produce a thicker, cozier one. If you substitute a different weight, you will need to re-swatch for gauge and adjust your stitch count accordingly.

Color Combination Ideas

One of the most enjoyable parts of planning this blanket is choosing your color pairing. Here are some combinations that have been particularly beautiful.

Classic cream with dusty rose hearts is soft, timeless, and suits any nursery palette. Cream or off-white with sage green hearts is fresh and modern. Pale gray with coral hearts is graphic and sweet without leaning pink. A deeper navy background with ivory hearts creates something slightly bolder and strikingly handsome. And for a subtle tonal look, try a pale blush background with a slightly deeper rose as your contrast — the hearts will whisper rather than shout, which some knitters love.

If you are knitting this as a gift and do not know the nursery colors, you truly cannot go wrong with a neutral main color and a soft, muted contrast. It will complement any setting.

Making This Blanket as a Gift

Hand-knitted gifts carry a weight that purchased gifts rarely match. When you give a knitted baby blanket, you are giving something that took real time and care and skill. That is worth acknowledging.

If you are presenting the blanket as a baby shower gift, consider rolling it softly and tying it with a satin ribbon rather than folding it flat. The texture of the hearts shows beautifully when the blanket is displayed this way, and it looks like something from a boutique.

Attach a small card noting the fiber content and washing instructions. New parents are grateful for this information, especially in those bleary early weeks when they cannot remember where they put anything. The premium PDF includes a printable gift card for exactly this purpose.

You might also consider knitting a small matching heart swatch and felting or framing it as a keepsake to accompany the blanket — a tiny piece of the same love in a form the family can keep long after the blanket has been outgrown.

A Note on Knitting for Babies

It is worth saying plainly: any time spent knitting for a baby is time well spent. Whether this is your first knitting project or your hundredth, whether your stitches are perfectly even or charmingly imperfect, the blanket you make carries something that no pattern or technique can quantify. It carries your attention and your time and your quiet hope for a new life.

Knit slowly if you want to. Put it down and come back to it. Let the rhythm of the needles be meditative. The baby will not mind how long it took. The family will not count the rows. What they will feel, in some wordless way, is that someone cared enough to make something by hand — and that is everything.

Happy knitting.

Free pattern written for personal and gifting use. Please do not sell finished items made from this pattern in large commercial quantities without permission. The premium PDF version may be purchased for a small fee and includes additional content not available in this free written version.