Spiral Seashell Square Crochet Pattern

This lovely seashell square crochet pattern starts with a spiral seashell and grows outwards into an ocean-themed square with a scalloped inner border. Use it as part of a blanket or by itself as a decorative trivet.

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Make a Double-Sided Trivet

This seashell square crochet pattern is perfect for blankets, throws, pillowcases, or just on its own as a decoration. You can use it in a single layer as a trivet, but for extra protection, make a 2nd layer! Simply make 2 squares, hold them with wrong sides together, and sew or crochet them together along the outer edge.

Other Spiral Seashell Patterns

The center of this seashell square is the Spiral Seashell Motif. The motif pattern includes 2 edging options and works well as a coaster or applique. The square pattern uses the lighter, embroidered edging.

Combine both versions in the Spiral Seashell Bag! It uses the shell with the embroidered edging as the center of the back, much like in this blanket square. Then the motif with the crocheted edging makes a pocket on the front.

Get the Set

In addition to the free, online version, each pattern is available for purchase individually on Ravelry as a downloadable pdf, nicely formatted for printing. Want them all? Save some money and buy the Spiral Seashell Set e-book!

Spiral Seashell Square

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Materials

• Yarn: 
  • Lion Brand Vanna’s Choice – worsted/medium weight yarn
    • 12 yds 400D Oatmeal (A) – 92% acrylic, 8% rayon (145 yds / 3 oz / 85 g per skein)
    • 5 yds 125B Taupe (B) – 100% acrylic (170 yds / 3.5 oz / 100 g per skein)
  • Red Heart Soft – 100% acrylic, worsted / medium weight yarn (256 yds / 5 oz / 141 g per skein)
    • 50 yds 9520 Seafoam (C)
    • 10 yds Deep Sea (D) – Note: This color is no longer available. 9518 Teal is a good substitute.
• Hook: Size H / 5 mm crochet hook or size needed to match gauge
• Notions:
  • Scissors
  • Tapestry Needle
  • Stitch Markers (2)

Project Level

Intermediate: Magic Circle, continuous rounds, some embroidery, some uneven shaping

Size

8″ square

Gauge

Shell measures approximately 4.25 inches / 10.5 cm at widest point before edging.

Abbreviations used

This pattern uses US terms.

• ch = chain
• dc = double crochet
• hdc = half double crochet
• rnd = round
• RS = right side
• sc = single crochet
• sk = skip
• sl st = slip stitch
• st(s) = stitch(es)
• WS = wrong side

Recommended Resources

• How to Start a Crochet Circle – 3 Ways
• Continuous rounds and running stitch markers

Instructions

Shell

Most of shell is worked in continuous rnds. Do not join or turn unless specifically indicated. Mark first st of each rnd.

With A, ch 2 or make a magic circle and ch 1.

Rnd 1 (RS): 6 sc in 2^nd ch from hook or in magic circle, pull tail to close magic circle if used. (6 sc)

Rnd 2: 2 hdc in each st around. (12 hdc)

Rnd 3: 2 dc in each st around. (24 dc)

Rnd 4: [2 dc in next st, dc in next st] around. (36 dc)

Row 5 (WS): Ch 3 (counts as first dc), turn, [2 dc in next st, dc in next 2 sts] 3 times, [2 hdc in next st, hdc in next 2 sts] twice, 2 sc in next st, sc in next st, sl st in next st, leave remaining 19 sts unworked. Fasten off. (13 dc, 8 hdc, 3 sc)

Shell Chart

Center Circle

With RS facing, join C with sl st in top of last st on Rnd 4 of shell.

Row 1 (RS): Working in back loops only around outside edge of shell, [2 dc in next st, dc in next st] 4 times, [2 hdc in next st, hdc in next st] 3 times, 2 sc in next st, sc in next 2 sts, sl st in next st (same st that sl st from rnd 5 of Shell was worked into). (25 sts)

Row 2: Turn, working in both loops, sl st in next st, [2 sc in next st, sc in next 2 sts] four times, [2 hdc in next st, hdc in next 2 sts] twice, 2 dc in next st, dc in next 2 sts, 2 dc in next st, dc in next 2 sts, sl st in top of first st of rnd 5 of shell. (32 sts)

Rnd 3: Turn, ch1, [2 sc in next st, sc in next 3 sts] 7 times, 2 sc in next st, sc in next st, hdc in next 2 sts, 2 dc in next sl st (beginning sl st from Row 2), dc in next sl st (ending slip stitch from Row 1), continuing around shell and working in back loops only, dc in next st, hdc in next st, 2 hdc in next st, [sc in next 3 sts, 2 sc in next st] 5 times, join with sl st to first sc. (72 sts)

Inner Square

Rnd 4: Turn, ch 3 (counts as first dc throughout), working in both loops, dc in next 2 sts, *hdc in next 2 sts, sc in next 7 sts, hdc in next 2 sts, dc in next 3 sts, (2 tr, ch 1, 2 tr) in next st**, dc in next 3 sts, repeat from * 3 times, ending at ** on last repeat, join with sl st to top of ch 3. (84 sts, 4 ch-1 sps)

Border

With right side facing, join D with sl st in in any ch 1 sp.

Rnd 5: Ch 3, (dc, ch 1, 2 dc) in same sp, *[sc in next st, sk next st, 3 dc in next st, sk next st] 5 times, sc in next st**, (2 dc, ch 1, 2 dc) in next corner sp, repeat from * 3 times more, ending at ** on last repeat, join with sl st in top of first st, fasten off. (100 sts, 4 ch-1 sps)

With wrong side facing, join C with sc in in any ch 1 sp.

Rnd 6: (Sc, ch 1, 2 sc) in same sp, *sc in next st, [ch 3, sk next 3 sts, sc in next st] 6 times**, (2 sc, ch 1, 2 sc) in next ch-1 sp, repeat from * 3 times more, ending at ** on last repeat, join with sl st in top of first st. (40 sts, 24 ch-3 sps, 4 ch-1 sps)

Rnd 7: Turn, ch 3, dc in next st, *3 dc in next ch-1 sp, dc in next 3 sts, [3 dc in next ch-3 sp, dc in next st] 6 times**, dc in next 2 sts, repeat from * 3 times more, ending at ** on last repeat, dc in next st, join with sl st in top of first st, fasten off. (112 sts)

Embroidered Shell Edging

With yarn needle and B, embroider edging and spiral detail on Shell. Start at top of the first stitch of Row 5, work inwards, stitching just under the tops of sts of Row 5, then under tops of unworked sts of Rnd 4, and finally along spiral pattern between rnds. Do not embroider along the line between Rnd 4 and Row 5. Working outwards again, add the perpendicular lines, increasing the space between them as you go. Weave in all ends.

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I hope you enjoy this Spiral Seashell Square crochet pattern. A downloadable pdf of this pattern is available on Ravelry for a small fee. The fee for the pdf format offsets the advertising revenue lost when you print or download the pattern rather than viewing it online.

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