The Iris Square is a companion square to eighth patterns I shared during the fourth edition of Granny Square Month. Joined together, these nine granny squares would make a pretty baby blanket.
This post contains affiliate links. I may receive compensation (at no added cost to you) if you make a purchase using these links. Yarn for the sample was generously provided by Herrschners.
For all nine squares in this series, I used Herrschners Worsted 8 Wildflowers yarn (from left to right, in Wildflowers, Bluet, and Dandelion), a soft medium weight acrylic yarn with a very light halo.
The Iris Square is part of a series of coordinating 8″ granny squares. If you’d like to make them all, you can find each pattern linked below the collage.
- Alba Square,
- Belita Square,
- Celia Square,
- Delia Square,
- Elena Square,
- Felicita Square,
- Gabriela Square,
- Hermelinda Square, and
- scroll down for the free crochet pattern for the Iris Square.
If you make your own Iris Square, I’d love to see it! Share your progress and questions in the Underground Crafters Community or by tagging me on Bluesky as @UndergroundCrafter, Facebook as @UndergroundCrafter, or Instagram as @ucrafter. Sign up for my weekly newsletter and get a coupon code for your choice of one of my premium patterns and private access to my vault of subscriber goodies. Plus, you’ll never miss one of my free patterns again!
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Iris Square
8″ Crochet Granny Square Pattern by Underground Crafter
The Iris Square is the twenty-ninth of 30 free crochet patterns for 8″ square in the 2026 Granny Square Month Crochet Along with Underground Crafter. This 8” square is finished with crossed double crochet rounds.
Finished Size
- Motif: 8” (20.5 cm) square.
Materials
- Herrschners Worsted 8 Wildflowers yarn (100% acrylic, 8 oz/226 g, 489 yd/448 m) – 1 skein each in Dandelion (CA), Bluet (CB), and Wildflowers (CC), or approximately 10 yd (9 m) each in CA and CB, and 60 yd (55 m) in CC in any medium weight yarn.
- KnitPro Waves 2.0 (available online at LoveCrafts | Amazon) US Size I-9/5.5 mm crochet hook, or any size needed to obtain correct gauge.
- Yarn needle.
Gauge
- Finished Square = 8” (20.5 cm) square in pattern. Exact gauge is not critical for this pattern.
Abbreviations Used in This Pattern
- CA – Color A
- CB – Color B
- CC – Color C
- cdc – crossed double crochet – Skip next st, dc in next st, dc in skipped st. Each cdc counts as 2 sts. A helpful video demonstrating this stitch is available below.
- If you can’t see the cdc video above, watch it on YouTube.
- ch – chain
- dc – double crochet
- hdc – half double crochet
- pop – 3-repeat popcorn – Dc 3 times in same st, remove hook from loop and insert hook from front to back of first dc in group, pick up dropped loop and pull through loop on hook. A helpful video demonstrating this stitch is available below.
- If you can’t see the pop video above, watch it on YouTube.
- rep – repeat
- Rnd(s) – Round(s)
- sc – single crochet
- sl st – slip stitch
- sp – space
- st(s) – stitch(es)
- yo – yarn over
- *Repeat instructions after asterisk as indicated.
- [] Repeat instructions between brackets as indicated.
- () Work instructions in parentheses into same stitch or space.
Pattern Notes
- Square is crocheted in the round with the right (front) side facing up.
- Ch 1 at start and sl st at end of Rounds DO NOT count as stitches.
- These squares might benefit from spray blocking. You can find more information and helpful videos about blocking in Blocking Basics for Crocheters and Knitters.
- Planning to join squares? The video below, “How to join granny squares 5 ways: mattress stitch, whipstitch, slip stitch, single crochet, join-as-you-go (JAYG)” may help.
- If you can’t see the video above showing 5 ways to join granny squares, watch it on YouTube.
Pattern Instruction
Square
- With CA, ch 4, skip 3 ch, join with sl st to next ch to form ring.
- Rnd 1: Ch 1, [pop in ring, ch 1] 5 times, pop in ring, join with sc (counts as ch-1 sp) to first dc. (6 pop + 6 ch-1 sp)
- Rnd 2: Ch 1, starting in same sp, [pop in ch-1 sp, 2 sc in next st] around, join with sl st to first pop. (18 sts)
- Rnd 3: Ch 1, starting in same st [2 sc, sc in next 2 sts] around, join CB with sl st to first sc, fasten off CA. (24 sts)
- Rnd 4: Ch 1, starting in same st [2 dc in next st, dc in next st] around, join with sl st to first dc. (36 sts)
- Rnd 5: Ch 1, dc in same st *dc in next st, hdc in next 2 sts, sc in next 2 sts, hdc in next 2 sts, dc in next st,** (2 dc, ch 2, 2 dc) in next st; rep from * around, ending last rep at **, 2 dc in first st, ch 2, join with sl st to first dc, fasten off CB. (12 sts/side + 4 ch-2 sp)
- Rnd 6: Join CC with sl st to any ch-2 sp, ch 1, 2 dc in same sp, *[cdc 6 times] across side,** (2 dc, ch 2, 2 dc) in ch-2 sp; rep from * around, ending last rep at **, 2 dc in first ch-2 sp, ch 1, join with sc (counts as ch-1 sp) to first dc. (16 sts/side + 4 ch-2 sp)
- Rnd 7: Ch 1, 2 dc in same sp, *[cdc 8 times] across side,** (2 dc, ch 2, 2 dc) in ch-2 sp; rep from * around, ending last rep at **, 2 dc in first ch-2 sp, ch 1, join with sc (counts as ch-1 sp) to first dc. (20 sts/side + 4 ch-2 sp)
- Rnd 8: Ch 1, 2 dc in same sp, *[cdc 10 times] across side,** (2 dc, ch 2, 2 dc) in ch-2 sp; rep from * around, ending last rep at **, 2 dc in first ch-2 sp, ch 1, join with sc (counts as ch-1 sp) to first dc. (24 sts/side + 4 ch-2 sp)
- Rnd 9: Ch 1, dc in same sp, *[cdc 12 times] across side,** (dc, ch 2, dc) in ch-2 sp; rep from * around, ending last rep at **, dc in first ch-2 sp, ch 2, join with sl st to first dc, fasten off CC. (26 sts/side + 4 ch-2 sp)
Finishing
- With yarn needle, weave in ends on wrong side of square.
- Spray or wet block (see Pattern Notes) if necessary.