Giant Granny Square Blanket Pattern

If you love colourful crochet blankets, a giant granny square blanket is one of the easiest and most satisfying projects to make. Working from the centre outwards, this traditional granny square grows into a beautiful blanket with very little sewing and a wonderfully relaxing rhythm.

On this page I’ll share the colours I used, the yarn quantities, my colour order and the border I chose to create my finished blanket. If you’re new to granny squares, you’ll also find links to my step-by-step granny square tutorial.

What you’ll need

Stylecraft Special DK – 800g, approximately 1 ball each of six different colours and 2 balls of the main colour (white in my example)
3.5mm crochet hook (I now prefer a 4mm hook when using Stylecraft Special DK, but either will work depending on your tension.)
yarn needle
scissors
blocking mats (optional)

Yarn and colours

I made this blanket using Stylecraft Special DK, one of my favourite acrylic yarns for blankets. It’s soft, durable, machine washable and available in an enormous range of colours, making it ideal for colourful crochet projects. These jewel-inspired shades contrast beautifully with the crisp white rounds.

White (2 balls)
Magenta
Aspen
Lavender
Clematis
Wisteria
Graphite

Finished blanket size

Approximately 103 cm × 103 cm
800g yarn
50 rounds

The finished size and yarn quantities will vary depending on your tension and hook size. If you’d like a larger blanket, simply continue working additional rounds in the same colour sequence.

Pattern for the Granny Square

If you’re new to granny squares, you’ll also find a link to my step-by-step Granny Square tutorial and video tutorial to help you get started.

Granny Square Pattern and Tutorial

Close up of the Granny Square — Close-up of the completed giant granny square before adding the border.

I followed the pattern for the Granny Square with the following colour order:

Colour sequence

Each seven-round repeat was worked as follows:

Magenta
White
Aspen
Lavender
Graphite
Clematis
Wisteria

Repeat until 50 rounds have been completed, finishing with Magenta.

Close up of the detail of a giant Amethyst Granny Square — Close-up showing the colour sequence in the giant granny square blanket.

Adding the border

Once the granny square was complete, I worked one round of UK double crochet in Magenta before adding Border #130 from Round the Corner Crochet Borders by Edie Eckman. I used White and Clematis for the decorative edging, but you could easily substitute your own favourite colours or choose a completely different border to personalise your blanket.

Close up of the Decorative crochet border worked in White and Clematis. — Decorative crochet border worked in White and Clematis.

Tips for success

Keep your tension as even as possible.
Weave in ends every few rounds.
Turn the work over after each round to help keep the work square and even.
If you’d like a larger blanket, simply continue adding rounds.
Using a larger hook will create a softer drape.

Blocking

Blocking isn’t essential, but it really helps even out the stitches and gives the blanket crisp, straight edges. I pinned my blanket to blocking mats, lightly sprayed it with water and left it to dry completely before removing the pins.

Granny Square blanket border with white and pink — Close up of the border of the blanket whilst the blanket is being blocked

My completed blanket measured approximately 103 cm × 103 cm after blocking.

Pin for Later

Enjoyed this project? Save it to Pinterest so you can come back to it whenever you’re ready to start your blanket.

Frequently Asked Questions

Can I use a different yarn?

Yes. Any DK-weight yarn will work, although the finished size and yarn quantities may vary.

Can I make it larger?

Absolutely. Simply continue repeating the colour sequence until your blanket reaches your preferred size.

Do I need to block it?

Blocking isn’t essential but helps produce straighter edges and a neater finish.

How much yarn do I need?

My blanket used approximately 800g of DK yarn. If you’d like to make a larger blanket, allow extra yarn for additional rounds and your chosen border.

Is this blanket suitable for beginners?

Yes. If you’re comfortable making a traditional granny square, this blanket is simply a matter of repeating the same rounds until it reaches your desired size. It’s a wonderfully relaxing project with very little shaping or counting.