Granny Square Cozy

Crochet Granny Square Cozy for a rock sitting next to a river made in white, purple and pink

Granny Square Cozy – for Rocks!

I love the classic look of the traditional crochet Granny Square so I created this Granny Square Cozy pattern several years ago. Today I am going to share the FREE easy pattern with you – a project I like to call, “Granite Grannies” since there are many granite rocks in my home state! This project works best with smooth rocks that are between 3″ and 6″ in diameter. This pattern is very simple to customize to fit whatever size rock you have. I enjoy finding rocks in the great outdoors but you can also purchase rocks on Amazon (see link below)!

Blue granny square cozy for small rock held in a hand in front of a beautiful mountain scene crocheted in all blue

Rock Cozies = Treasure Hunt!

If you’ve been following my blog for a while, then you know I like to cover rocks with crochet and then hide them in various places around my state and on my travels. Working on the rocks is relaxing for me and I love to hear about how people have found them and take them home to enjoy them. (Click here to see more of my rock creations and where they have been hid over the years.) Part of the fun of making these crochet rock cozies is that I make them while sitting outdoors in many of the beautiful places that I hide them. The blue rock shown above was hidden on top of Mt. Agassiz in the White Mountains of NH – did you find it? The view here is breathtaking!

Various granny square cozy rocks shown together with flowers and a gold butterfly as decoration in a home

The Perfect Unique Paperweight and Gift!

This Granny Square Cozy can also be used to make a special gift for a friend to decorate their home or garden or to be used as a paperweight. I designed 2 versions of this crochet rock cozy project – one that is all one-color and one that uses several colors. I will give you both versions in the pattern below. (Basically, you do something a little different at the beginning of each round if you are changing colors.) I think that the smooth round rocks are the perfect canvas for artwork – I really enjoy combining lacy crochet with a variety of natural items. I think the beauty of both elements (crochet + natural object) is enhanced by being together. (You can see this combination in these other projects/patterns of mine: The Colorida Wall Hanging, the Mandala Driftwood Decoration, and the Celtic Driftwood Decoration) Have you ever combined crochet with something you can find outside? I highly recommend it!

3 granny square cozy rocks each made in one color - yellow, green and blue - laying on a mossy tree trunk

Simple Stitches and a Small Amount of Thread

These Granny Square Cozy projects use a small amount of Size 10 (or Size 3) cotton crochet thread and basic crochet stitches. To make this pattern you will need to know how to do these crochet stitches: chain, double crochet, slip stitch and single crochet – that’s it! Cotton crochet thread is much thinner that the yarn you would use for blankets, afghans and throws so it can take some practice to get used to. But you could make this project with sock yarn or thinner medium weight yarn and find a rock that is a little larger than mine! Or you can always practice the pattern with thicker yarn first to get the hang of it before you try crocheting with the thread.

Skill Level: Easy

Measurements: 3-6″ diameter

Let’s get started!

Rounds 1 and 2 of the Granite Grannies project shown on a pebble beach with crochet hook and tan thread


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Size 10 (or Size 3) cotton crochet thread (for single color cozy) – 1 skein

(Small amount of each color in Size 10 (or Size 3) cotton crochet thread for multi-color cozy)

1.5 mm hook (or 2.75mm for Size 3 thread)

Smooth 3-6″ rock (A variety of rock shapes will work well for this project – round, oval and even square rocks work great – Click here to purchase round 2-3″ rocks on Amazon)

Yarn needle (smaller eye that works well with thread)

Optional: Permanent Marker (to write a message on rock)

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Abbreviations and Stitches:

Sl st (slip stitch) = Insert hook into stitch, YO, pull through stitch and loop on hook

Dc (double crochet) = YO, insert hook into stitch, YO, draw up a loop, (YO, pull through 2 loops on hook) twice

Sc (single crochet) = Insert hook into stitch, YO, draw up a loop; YO, pull through 2 loops on hook

YO (yarn over)

Hk (hook)

Lp (loop)

Ch (chain)

St (stitch)

Sp (space)

9 granny square cozy projects made in different colors and sitting on a rock


Project is worked in the round

Instructions for the Granny Square Cozy:

Rounds 1-3 completed of the granny square cozy for rocks pattern crocheted in a tan color

Version 1 – One-Color Granny Square Cozy:

Ch 5 – join with sl st to form a ring

Round 1: 

Ch 3, 2 dc in ring; (ch 3, 3 dc) in ring 3 times; ch 3, join with sl st to top of starting ch-3.

Round 2: 

Sl st in next 2 dcs and into next ch-3 sp; (ch 3, 2 dc, ch 3, 3 dc in same sp) (Corner); [ch 1, (3 dc, ch 3, 3 dc) in next ch-3 sp] 3 times; ch 1; join with sl st to top of starting ch-3.

Round 3: 

Sl st in next 2 dcs and into next ch-3 sp; (ch 3, 2 dc, ch 3, 3 dc) in same sp (Corner); [(ch 1, 3 dc in next ch-1 sp) across to next ch-3 sp; ch 1, (3 dc, ch 3, 3 dc) in next ch-3 sp] 3 times; (ch 1, 3 dc in next ch-1 sp) across to first corner; ch 1; join with sl st to top of starting ch-3.

Smaller Rock with 3-Round Granny Square:

Here is where the granny square stops and it will give you just 3 rounds of the square – I like this amount for the smaller 2-3″ rocks – this version also works up very quickly; If you would like a bigger square or you have a bigger rock, then repeat Round 3 until you have the size you like – For the multi-colored squares shown here, I repeated Round 3 two more times.

Repeat Round 3 to increase the size of your Granny Square

First round of the edging shown with hook and on a dark rock

Edging Round 1:

**If you are making a multi-colored Granny Square, do not fasten off after the last round of your square – you will continue to work the edging in the last color you used**

Sl st in each of the next 2 dcs and in the next ch-3 sp; ch 7 (counts as first dc and ch-4 sp), dc in same ch-3 sp; [(ch 4, dc in next ch-1 sp) across to next ch-3 sp; ch 4, (dc, ch 4, dc) in next ch-3 sp] 3 times; (ch 4, dc in next ch-1 sp) across to beg of round; ch 4, join with sl st to 3rd ch of starting ch-7.

Edging Round 2:

Sl st in each of the next 2 chs; ch 7 (counts as first dc and ch-4 sp), dc in next ch-4 sp; (ch 4, dc in next ch-4 sp) around ending with a ch 4, sl st in 3rd ch of starting ch-7.

Edging Round 3:

Repeat Edging Round 2

**Lay your granny square on your rock and see how it fits – the granny square section should be centered on the front of the rock with Edging Rounds 1 & 2 starting to carry down the side of the rock; Edging Round 3 should be on the back of the rock – if your cozy is not fitting in this way, then repeat Edging Round 2 as many times as you need until cozy fits the rock

Backside of the granny square cozy project showing how the last round makes it fit tight on rock

Edging Last Round:

**Halfway through this round you will need to insert the rock**

Sl st in each of the next 2 dcs; ch 1, sc in same sp; (ch 1, ch 2 or ch 3, sc in next ch-4 sp) around; ch 2, sl st to first sc of round. Fasten off.

(Note: Depending on the shape and size of your rock, you will need to adjust how many chains you put in between each sc for this last round – I usually wrap the cozy around the rock before starting this round to get a feel for how it will fit – if it is stretched pretty far across the rock, then I do 2 or 3 chs between the scs; If it seems a little big for the rock, then I do just 1 ch in between the scs – You want it snug so your cozy stays on the rock and looks its best)

Completed colorful granny square cozy project

Version 2 – Multi-Color Granny Square Cozy:

Work project as for One-Color version except:

Fasten off at the end of each round before the edging rounds (except last round)

Do not do the stitches highlighted in blue – instead work a sl st with new color in any ch-3 sp (corner) and then work each round as written above

Back of rock shown with a simple message on it saying Celtic Knot Crochet, 2023 and Take Home and Enjoy

Finishing the Granny Square Cozy:

Weave in ends with needle

Add a message to the bottom side with a permanent marker

(If you are hiding your rock, I recommend adding a message that says something like, “Take Me Home to Enjoy” with the date. If you are giving your rock as a gift, make sure to write: “To” and “From” along with the year and a kind message.)

Your Granny Square Cozy is Complete!

Completed granny square cozy project in the colors red, turquoise, yellow, white and black shown on a large rock next to a waterfall

Tada! Your “Granite Grannie” is complete! Which one did you decide to make? I have made several of the smaller one-color granny square cozy patterns – I am able to make one in less than 30 minutes. I have even made a few with the Size 3 thread (which is a little thicker than the Size 10) and they cover a rock very quickly! I think there is something very comforting in the traditional granny square design and I love having these rocks around my home. If you make one of these or have found one of mine, please email me – I would love to hear about it!

If you like this rock cozy pattern, then you may like my other FREE rock cozy patterns: White Mountain Mandala Rock and the Crochet Flower Rock Cozy.

Remember you can find all of my FREE patterns here and more rock cozy ideas and photos here.

Thank you for vitisting!


Copyright – Jennifer E Ryan- all rights reserved. No part of this publication may be reproduced, distributed or transmitted in any form or by any means, including photocopying, recording or other electronic or mechanical methods, without the prior written permission of the publisher but please do link to this page to share this pattern with others.

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2 thoughts on “Granny Square Cozy

  1. Hi Jennifer. What a cute idea for a granny square! My MIL paints rocks to look like birds and critters to give as gifts; she’d probably like one of these. And I just received some small skeins of #3 cotton thread in bright colors which would be perfect. Thank you for sharing the pattern.
    P. S. I’m loving the Clover crochet hooks I won from you! Thanks, again.😊❤

    1. Thank you! Glad to hear you like this idea. They are fun & quick to make and hide (or gift to someone). Glad to also hear you are loving the Clover hooks – yay! 🙂

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