Bioluminescence Bloom Ruana is a lightweight, drapey crochet layering piece inspired by the glowing shoreline scene in The Sea Glass Journal. Built with an elegant offset cluster stitch that resembles tiny blooming lights, this ruana is worked in simple panels with minimal shaping and beautiful movement. Wear it open, belted, or draped around your shoulders for instant coastal elegance.
This free pattern includes step-by-step photos, charts, and instructions to help you customize length, fit, and styling. It’s a relaxing project with a stunning finish — perfect for gifting or elevating your own handmade wardrobe.
Instantly download the ad-free PDF Pattern HERE:
What you will need:
- 1360 yds (1243m) #5 bulky weight yarn
- H/8 (5mm) crochet hook
- yarn needle
- scissors
Shown in:
Lion Brand Jiffy Bundle Yarn; #5 bulky weight 100% acrylic yarn; 681 yds (623m) per 14.5 oz (410g); color Deep Indigo, 2 balls.
Gauge:
14 sts = 4 in (10cm) in blocked stitch pattern.
Finished Size:
35 in (88.9 cm) wide x 26 in (66 cm) tall.
Stitch Guide:
Chain (ch), double crochet (dc), half double crochet (hdc), half double crochet back loop only (hdc blo), 3 double crochet cluster (3dc-cl) and treble crochet (tr).
Pattern notes:
- This pattern uses US terminology.
- Weave in loose ends as work progresses
- Turn work at the end of each row.
- Do not turn work at the end of each round.
- Have fun! Remember the point of being creative is to enjoy it!
Instructions:
Back:
Note: If modifying this pattern, please note the stitch pattern begins with a multiple of 5 sts + 2.
Note: Back is worked from the top down. The starting chain will be referred to as the shoulder when joining Right and Left Front.
Row 1: Ch 108, 1sc in 2nd ch from hook and ea chain across, turn. — 107 scs
Row 2: Ch3 (counts as dc), skip 1 st, 3dc-cl in next st, ch3, 3dc-cl in next st, *skip 3 sts, 3dc-cl in next st, ch3, 3dc-cl in next st. Rep from * across until 2 sts remaining: skip 1 st, dc in last st, turn. — 42 petals, 21 ch3 sps
Row 3: Ch1, sc in first st, *1sc in next cl st, 3sc in next ch3 sp, 1sc in next cl st. Rep from * across, 1sc in last tr, turn. — 107 scs
Row 4: Ch4 (counts as dc, ch1), 3dc-cl in next st, *skip 3 sts, 3dc-cl in next st, ch3, 3dc-cl in next st. Rep from * across to last 5 sts: skip next 3 sts, 3dc-cl in next st, ch1, dc in last st, turn.
Row 5: Ch1, 1sc in first st, 1sc in next ch1 sp, 1sc in next cl-sl, *1sc in next cl-sl, 3dc in next ch3 sp, 1sc in next cl-cl. Rep from * across to last 3 sts: 1sc in next cl-sl 1sc in next ch1 sp, 1sc in last dc, turn.
Rows 6 – 51: Rep rows 2 – 5 23 times. Fasten off.
Right Front:
Row 1: Join with slst to corner of row 1 of back, ch1, 1sc in ea of first 42 chs. — 42 scs
Row 2: Ch3 (counts as dc), skip 1 st, 3dc-cl in next st, ch3, 3dc-cl in next st, *skip 3 sts, 3dc-cl in next st, ch3, 3dc-cl in next st. Rep from * across until 2 sts remaining: skip 1 st, dc in last st, turn. — 16 petals, 7 ch3 sps
Rows 3 – 51: Rep rows 2 – 51 of back. Fasten off.
Left Front:
Row 1: Skip center 23 sts, join with slst to next st on row 1 of back, ch1, 1sc in ea of remaining 42 chs, turn. — 42 scs
Row 2: Ch3 (counts as dc), skip 1 st, 3dc-cl in next st, ch3, 3dc-cl in next st, *skip 3 sts, 3dc-cl in next st, ch3, 3dc-cl in next st. Rep from * across until 2 sts remaining: skip 1 st, dc in last st, turn. — 16 petals, 7 ch3 sps
Rows 3 – 51: Rep rows 2 – 51 of back. Fasten off.
Edging:
Neck/Collar:
Row 1: Starting at either front lower corner, join with slst, and work 2hdc in ea row-end st up to shoulder, 1hdc in ea back neck st, and 2hdc in ea row-end st back down to lower front.
Rows 2 – 6: Ch1, hdc-blo in ea st across, turn.
Fasten off.
Outer Edge:
Row 1: Starting at lower edge of either side of lower back, join with slst, and work 2hdc one a row-end st up to shoulder and then down to lower edge of same front, turn.
Rows 2 – 3: Ch1, hdc-blo in ea st across.
Fasten off.
Belt:
Ch3, dc in 3rd ch from hook. Rep from * until belt is desired length (shown is 60 in (152cm) long. Fasten off.
Fringe:
Cut 10 pieces of yarn 4 in (10cm) long. Join 5 pieces of yarn to each end of belt with a slip knot. Trim fringe evenly.
Assembly:
Sew side seams for 1 in (2.5cm) 12 in (30.5cm) down from shoulder seam.
Finishing:
Weave in loose ends. Hand wash, block to finished measurements and allow to dry.
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Kristin Omdahl patterns, books, handouts and videos are for your personal use only; additional, up to 10 items can be made to sell from one design. Commercially produced products made from my instructions are prohibited. All Kristin Omdahl patterns, books, handouts and videos are licensed for single use and remain the intellectual property of Kristin Omdahl. This pattern may not be reproduced or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise.
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About Kristin Omdahl
Kristin Omdahl is a bestselling author, designer, and creative entrepreneur known for her “sensory storytelling” — weaving food, craft, and nature into unforgettable fiction and non-fiction. Her debut novel, The Sea Glass Journal, is a love letter to Florida’s Gulf Coast, exploring themes of healing, connection, and creative legacy.
When she’s not writing, Kristin shares crochet and knitting designs, recipes, and behind-the-scenes glimpses of her creative process with her global community on Patreon.
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