How to Crochet the “Little Sweetheart” Baby Cardigan: A Step-by-Step Guide

Crocheting baby garments is one of the most rewarding projects a crafter can take on. The small size, the intricate yet manageable details, and the joy of gifting something handmade make it a delightful experience. Among these projects, the “Little Sweetheart” baby cardigan stands out for its elegance, comfort, and charm.

Whether you’re making it for your own baby, a baby shower gift, or charity donations, this guide will walk you through everything you need to know to crochet your own Little Sweetheart cardigan — from materials and sizing to the final stitch.


💖 About the “Little Sweetheart” Baby Cardigan

The “Little Sweetheart” cardigan is a soft, cozy, top-down baby cardigan, worked in one piece with minimal seaming. It features:

  • Delicate detailing around the yoke
  • A button-up front
  • Optional lacy edging or ruffles for an extra sweet touch

It can be customized in terms of size, sleeve length, and trim — making it suitable for newborns to 12 months.


🧵 Materials You’ll Need

Yarn

  • Yarn weight: Light (DK) or baby sport yarn (Category 3)
  • Yardage:
    • Newborn: 150–180 yards
    • 3–6 months: 200–250 yards
    • 6–12 months: 250–300 yards
  • Fiber suggestion: Cotton-blend or super-soft acrylic for comfort and washability
  • Color: Choose soft pastels or classic white for a timeless baby look

Crochet Hook

  • Size: 4.0 mm (G-6) or size required to meet gauge

Notions

  • Yarn needle (for weaving in ends)
  • Scissors
  • Stitch markers
  • 3–5 small buttons (1/2″ or 1.2 cm)
  • Measuring tape

📏 Sizing Guide

SizeChest CircumferenceFinished ChestApproximate Age
Newborn14–15″ (35–38 cm)16″ (40 cm)0–3 months
3–6 months16–17″ (40–43 cm)18″ (45 cm)3–6 months
6–12 months18–19″ (45–48 cm)20″ (50 cm)6–12 months

🧶 Tip: Make a swatch! Aim for a gauge of 18 dc x 10 rows = 4 inches (10 cm).


🪡 Stitches & Techniques Used

  • ch – chain
  • sl st – slip stitch
  • sc – single crochet
  • dc – double crochet
  • hdc – half double crochet
  • dc inc – 2 dc in same stitch (increase)
  • dc2tog – double crochet two together (decrease)
  • shell stitch – 5 dc in one stitch (for optional lacy edging)

Skill Level: Advanced beginner to intermediate


🧶 Part 1: Yoke (Top-Down Construction)

This cardigan is worked top-down, starting at the neck and increasing at the raglan points to shape the yoke.

Foundation Row:

  1. Ch 52 (for newborn) – (Adjust by adding multiples of 8 for larger sizes)
  2. Dc in 4th ch from hook and in each ch across (49 dc)
  3. Turn.

Row 1 (Setup for Raglan Increases):

  1. Ch 2 (counts as first dc), dc in next 6 sts,
  2. [dc, ch 1, dc] in next stitch (1st increase corner),
  3. Dc in next 8 sts,
  4. [dc, ch 1, dc] in next (2nd corner),
  5. Dc in next 10 sts,
  6. [dc, ch 1, dc] (3rd corner),
  7. Dc in next 8 sts,
  8. [dc, ch 1, dc] (4th corner),
  9. Dc in remaining 7 sts.
  10. Turn.

Row 2–8 (Increasing Rows):

  • Continue in dc, placing [dc, ch 1, dc] in each ch-1 space (these are your raglan increase points).
  • Continue working dc in all other stitches.

🧮 By Row 8, you should have a well-formed yoke with 4 increase “seams” where the sleeves and body will be separated.


👕 Part 2: Splitting for Sleeves

At this point, you’ll divide the piece into body and sleeves.

Row 9 (Separate Sleeves):

  1. Work in dc to first ch-1 space,
  2. Skip all sts between 1st and 2nd ch-1 spaces (this forms sleeve), ch 2 or 4 underarm chains,
  3. Continue dc across back to next ch-1 space,
  4. Skip sleeve sts again, ch 2–4,
  5. Finish the row with dc across remaining stitches.

You’ll now be working just the body of the cardigan.


👗 Part 3: Body

Rows 10–18 (or desired length):

  • Continue working even in dc.
  • Add some rows of hdc or sc at the bottom for a nice finishing edge.

🧵 Optional: Add shell edging or picot stitch at the hem for decoration:

*sc in first st, skip 1, 5 dc in next st, skip 1* repeat across

💪 Part 4: Sleeves

Sleeves are worked directly onto the underarm openings left earlier.

Sleeve Rounds:

  1. Join yarn to underarm.
  2. Work dc evenly around the armhole (approx. 20–24 sts).
  3. Join with sl st and ch 2 to begin next round.
  4. Continue in dc for 6–10 rounds depending on desired length.

Optional shaping: Decrease one stitch underarm every other round for a more tapered sleeve.

Finishing edge: Use sc or shell stitch to match body.


👕 Part 5: Button Band & Neckline

Right Front (buttonholes):

  1. Join yarn at neckline.
  2. Ch 1, sc evenly down the front edge.
  3. Place buttonholes: ch 2, skip 2 sts in evenly spaced locations.

Left Front:

  • Work a row of sc without buttonholes.

Collar:

  • Optional: Add 1–2 rows of sc or shell stitch around the neckline.
  • For a ruffled collar, work 2 dc in each stitch around.

🪡 Finishing Touches

Weave In Ends

  • Use a yarn needle to neatly weave in all yarn tails.

Block the Cardigan

  • Lightly steam or wet block to shape the cardigan.
  • Use pins to shape the edges and sleeves evenly.

Sew On Buttons

  • Use matching thread or yarn.
  • Make sure they’re secure and safe for babies (no choking hazards).

🎨 Customization Ideas

  • Color blocking: Use different colors for yoke, sleeves, and body.
  • Lace panel: Add a row of eyelets (e.g., dc, ch 1, skip 1) for a decorative touch.
  • Appliqués: Sew on small hearts, stars, or flowers.
  • Embroidery: Use surface crochet or stitching to personalize with a name or monogram.

📸 Tips for Sharing Your Work

If you’re gifting or selling your finished cardigan, consider:

  • Tagging your creations on Instagram with #LittleSweetheartCardigan
  • Including a handmade tag
  • Packaging in a breathable cotton pouch or tissue wrap

🧶 Final Thoughts

The “Little Sweetheart” baby cardigan is a timeless, adorable, and functional project for crocheters of all levels. Its versatility and sweetness make it a favorite in every handmade baby wardrobe. Whether you go for classic pastels or bold brights, every stitch you make will wrap a little one in warmth and love.

So pick your colors, prep your hooks, and get ready to create a precious handmade treasure.

Video tutorial:

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