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Elegant Lacy Shell Cardigan – Free Crochet Pattern

Inspired by user-provided image
Skill Level: Intermediate to Advanced
Style: Lightweight summer cardigan with scalloped trim
Construction: Modular – worked in panels and seamed


Materials Needed:

  • Yarn: Cotton crochet thread size 10 or sport-weight cotton/acrylic blend (approx. 800–1000 yards depending on size)

  • Hook: 2.5 mm (or size needed for gauge)

  • Notions: Yarn needle, scissors, stitch markers

  • Gauge (for shell pattern): 2 shell repeats x 6 rows = 4” x 4” (after blocking)

Elegant Lacy Shell Cardigan
Elegant Lacy Shell Cardigan

Stitch Abbreviations (US Terminology):

  • ch – chain

  • sc – single crochet

  • dc – double crochet

  • sl st – slip stitch

  • sp – space

  • rep – repeat

  • shell – (2 dc, ch 1, 2 dc) in same stitch or space

  • v-stitch – (dc, ch 1, dc) in same stitch

🧵 Shell Stitch Pattern:

(Multiple of 6 + 1)

Row 1:
Ch a multiple of 6 + 1. Sc in 2nd ch from hook, skip 2 ch, shell in next ch, skip 2 ch, sc in next ch. Rep from * to end. Turn.

Row 2:
Ch 3 (counts as dc), shell in ch-1 sp of each shell, sc in each sc across. End with a dc in the last st. Turn.

Repeat Row 2 for the pattern.


Step-by-Step Instructions

🧶 Back Panel:

  1. Foundation:
    Ch 85 (to fit medium bust; adjust in multiples of 6 + 1 for other sizes). Approx. 21” wide.

  2. Work Shell Stitch Pattern:
    Begin Row 1 of shell pattern and continue to repeat the pattern until the back panel measures approximately 18–20 inches in height from shoulder to hem (or desired length).

  3. Shaping Shoulders (optional):
    If desired, on the final 2 rows, you can decrease 1 shell on each side for shoulder tapering by skipping the first and last shell.

  4. Fasten off and block flat.


🧶 Front Panels (Make 2):

  1. Foundation:
    Ch 43 (half of back panel + 1 shell extra for overlap). You can ch more if you want the front to close or overlap more.

  2. Work Shell Pattern:
    Repeat shell stitch pattern until length matches the back panel.

  3. Shape Neckline (Optional):
    On the neckline edge (inner side), after approx. 10 inches in length, start decreasing 1 shell every 4th row to taper the edge slightly.

  4. Fasten off and block.

🧶 Sleeves (Make 2):

  1. Foundation:
    Ch 61 for elbow-length sleeves (approx. 15″ around). Add more chains for a looser or longer sleeve.

  2. Work Shell Pattern:
    Work shell stitch in rows until sleeve measures about 8–10 inches (or desired length).

  3. Optional Shaping:
    Taper by decreasing 1 shell on each side every 3 rows to make a snugger fit at the elbow.

  4. Fasten off and block.


🪡 Assembly:

  1. Shoulders:
    With right sides facing, seam the front panels to the back panel at the shoulders using whip stitch or mattress stitch.

  2. Attach Sleeves:
    Mark the center of the sleeve and align it with the shoulder seam. Sew the sleeve to the armhole edge evenly.

  3. Side Seams and Underarms:
    Fold garment at shoulders and seam sides and sleeve underarms, matching pattern lines as much as possible.

  4. Weave in all ends.


🌸 Scalloped Edging (Front, Neckline, and Hem):

This gives the beautiful decorative edging you see in the image.

  1. Attach yarn to the bottom edge of the right front.

  2. Row 1 (Foundation edging):
    Sc evenly around the entire front edge, neckline, and hemline. Place extra stitches around corners for a smooth curve.

  3. Row 2 (Scallop edging):
    Sc in next st, skip 1, 5 dc in next st (scallop), skip 1, sc in next st, repeat around. Adjust as needed around corners.

  4. Fasten off and weave in ends.

💧 Blocking:

  • Lay the cardigan flat on a blocking board or towel.

  • Use pins to shape the scalloped edges evenly.

  • Steam lightly or wet block depending on your yarn.


📏 Sizing Tips:

  • For Larger sizes, add more chains in the foundation rows (increments of 6) and work additional rows in length.

  • For Smaller sizes, subtract chains in multiples of 6 and shorten the length accordingly.

  • Always check the gauge and customize for the best fit.


💡 Customization Ideas:

  • Add buttons or ties to the front for closure.

  • Use gradient or ombré yarn for a modern look.

  • Add longer sleeves for a full-sleeved version.