Iris Blanket – Big Granny Square Blanket Pattern
Last Updated on January 1, 2026
The Iris Square Blanket is a big granny square blanket that uses the Granny Iris Stitch instead of the classic crochet Granny Stitch. Using the Iris stitch in a square creates a beautiful and modern granny square blanket.
This crochet blanket pattern is perfect for beginners, and will make a quick and easy crochet baby blanket!
Scroll down for the free crochet pattern and video tutorial.
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The Iris crochet blanket is made using my Iris in a Square pattern. This beautiful crochet square is a modern version of a granny square. Instead of working the classic Granny Square stitch, we are working the Iris stitch, which is a double V stitch.
The great thing about this pattern, is that it’s super easy and repetitive, you just repeat 2 rounds to make your square as big as you’d like, until you have a large granny square blanket!
This is the perfect crochet project to take on the go, or work in front of a TV, because you don’t need to count stitches or be too concentrated on the pattern. If you want, you use this square pattern for a Join-As-You-Go Iris Granny Square blanket.
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The Yarn I Used for My Blanket
For my blanket, I chose to use a self-striping yarn. I wanted to give this simple granny square blanket another dimension with the change of colors as the rounds grow.
The yarn I used for my granny square baby blanket is Caron Cotton Cakes Yarn in Sunset Dreams shade. It was just enough to make a perfectly sized baby blanket, and I love how the different colors are showing so well in each round.
For the free crochet pattern, please scroll down.
If you prefer the ad-free, full photo tutorial PDF pattern, you can purchase it on one of my shops below:
Iris Blanket – a Big Granny Square Blanket Pattern
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Skill Level – Easy
Materials
– 5.0 mm / H crochet hook
– Worsted (#4) weight yarn – I used Caron – Cotton Cakes
Total amount of yarn needed: 250gr/485m/530yds
– 4 Stitch marker (optional)
Abbreviations (US)
ch – chain
st – stitch
sc – single crochet
sp – space
dc – double crochet
D-V – double V stitch: [2dc, ch1, 2dc] in same stitch
PM – place markers
[…] – crochet the instructions within brackets into the same indicated st.
(…) – crochet the instructions within brackets as many times as directed.
* – Repeats are shown via asterisks. Repeat begins at * and ends at ;
Gauge – Working Rounds 1-4 will result in a 4×4” (10×10 cm) square.
** Gauge is not crucial for this pattern.
Finished size – 32×32” (81x81cm) – after blocking.
**The blanket can be worked to a larger size by repeating the pattern.
Crochet Big Granny Square Blanket Video Tutorial
Iris Stitch Granny Square Crochet Blanket Pattern
Make a magic ring.
Round 1: Ch 1, (1 sc, ch 2)x 4 times into magic ring, ss to 1st sc. Pull the ring tight.
Round 2: Ss into next ch-2 sp, ch 3 (counts as 1 dc here and throughout the pattern),
[1 dc, ch 1, 2 dc] in same ch-2 sp, ch 2, skip sc.
* 1 D-V in next ch-2 sp, ch 2, skip sc; Repeat from * 2 more times. Ss to top of ch-3.
Round 3: Ss into the next 4 sts and into the ch-2 sp, ch 3 (counts as 1 dc), [1 dc, ch 3, 2 dc] in same ch-2 sp (corner), 1 D-V in next ch-1 sp.
* [2 dc, ch 3, 2 dc] in next ch-2 sp (corner), 1 D-V in next ch-1 sp; Repeat from * 2 more times. Ss to top of ch-3.
Round 4: Ss into the next st and into next ch-3 sp (corner), ch 3 (counts as 1 dc), [1 dc, ch 1, 2 dc, ch 1- PM, 1 D-V] all in same ch-3 sp, 1 D-V in next ch-1 sp.
* [1 D-V, ch 1- PM, 1 D-V] in next ch-3 sp (corner), 1 D-V in next ch-1 sp; Repeat from * 2 more times. Ss to top of ch-3.
** Place markers at the ch-1 sp corners.
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Round 5: Ss into the next 4 sts and into next ch-1 sp (corner), ch 3 (counts as 1dc), [1 dc, ch 3-PM, 2 dc] in next ch-1 sp (corner), (1 D-V in next ch-1 sp) repeat (…) until marker (ch-1 sp corner).
* [2 dc, ch 3-PM, 2 dc] in next ch-1 sp (corner), (1 D-V in next ch-1 sp) repeat (…) until marker (ch-1 sp corner); Repeat from * 2 more times. Ss to top of ch-3.
** Move markers to the corners in each round, to avoid skipping the corners.
Round 6: Ss in the next st and into the ch-3 sp (corner), ch 3 (counts as 1dc),
[1 dc, ch 1, 2 dc, ch 1-PM, 1 D-V] in ch-3 sp, (1 D-V in next ch-1 sp) repeat (…) until ch-3 sp (corner).
* [1 D-V, ch 1-PM, 1 D-V] in next ch-3 sp (corner), (1 D-V in next ch-1 sp) repeat (…) until
ch-3 sp (corner); Repeat from * 2 more times. Ss to top of ch-3.
Repeat rounds 5-6 until the blanket approx. 32×32” (89×89cm), or your desired size.
More Free Crochet Granny Square Blanket Patterns
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