These granny square afghan patterns all grow from a single continuous square rather than requiring a full grid of separate motifs. Their stated yarn weights and blanket sizes make it easier to choose a starting point for a baby blanket or larger square afghan.
Granny square afghan patterns to explore
These grow as one continuous piece rather than separate motifs, but stitch markers still help track your round count on the larger sizes.
1. Granny Square Blanket
This is Sarah-Jayne Fragola’s Mermaid Shells Blanket, a giant granny square baby blanket that is quick and easy, finished with a shell border for seaside mermaid vibes. The page covers materials, color combinations, sizing, a gauge swatch and a video tutorial, and it is a good place to learn what makes a good granny square.
Free pattern: Sarah-Jayne Fragola at Bella Coco Crochet
2. Continuous Granny Square Blanket
Jo starts from a magic circle and repeats the main round to enlarge the blanket, so it is one continuous square with a border, easy as a baby blanket, throw or lapghan. She suggests size 3 (light) yarn for a baby blanket and size 4 (medium) for a heavier throw, and there is a video.
Free pattern: Jo at Jo to the World Creations
3. How to Crochet a Granny Square Blanket
Lauren Brown made this blanket years ago and sold finished ones on Etsy, and people kept asking for the pattern because of the color combination. It finishes about 29 by 29 inches, and uses about 685 yards of worsted weight yarn (Yarn Bee Soft and Sleek in white, linen and viridescent) on an I/9 (5.5 mm) hook. There are instructions to make it bigger.
Free pattern: View the pattern.
4. Blushing Blooms Granny Square Afghan
Shehnaaz calls this a done-in-a-day granny square afghan, using jumbo starburst squares in super chunky chenille yarn on a 10 mm hook. It finishes 34 by 41 inches with the border, each extra square adds about 8 inches, and she says it can be a first project if a granny square is all you know. An ad-free PDF costs $3.99.
Free pattern: View the pattern.
5. Color Changing Granny Square Throw
The Purple Poncho’s granny square blanket is rated Easy, made from scrap yarn in eight colors of #4 worsted (Caron One Pound), with a 5 mm and a 10 mm hook. Each square is 6.5 by 6.5 inches, joined as you go into a 34.5 by 67 inch blanket, and gauge is not critical. There is a video for each part.
Free pattern: View the pattern.
6. One Big Granny Square Blanket
Sonya Blackstone’s blanket is literally one oversized granny square that keeps growing, beginner-friendly and relaxing. The page has sections on yarn suggestions, how big it should be, color ideas, tips for success and creative variations.
7. Continuous Crochet Granny Square Pattern
Fay made this continuous granny square for when you want to keep your hands and mind busy. It uses Caron Blossom Cakes on a 6 mm hook, so the variegated yarn does the color changes, and it can be used for blankets, cushions or book sleeves. She says to drop a hook size for a more structured square, or go up for a more open, lacy look.
