Serene Sage Granny Square Cardigan: A Free Crochet Pattern for Beginners

Wrap yourself in tranquility with this oversized, open-front cardigan made from soft, sage green granny squares. The soothing color and breezy stitch pattern create a modern, minimalist garment perfect for layering over your favorite outfits. Whether you're new to crochet or a seasoned maker, this pattern is designed to be approachable and rewarding—all you need are basic granny square skills and a bit of patience. Let's dive in!

Materials Needed

Before you begin, gather the following supplies. This list is based on the technical specifications for a size M/L cardigan:

• Yarn: Worsted weight cotton blend yarn in sage green (approx. 1200–1500 yards for size M/L). A cotton blend gives the cardigan a soft, drapey feel that's perfect for layering.
• Hook: 5.5 mm (I-9) crochet hook. This size ensures your granny squares meet the gauge and create a nice, open stitch definition.
• Other tools: Yarn needle for weaving in ends, scissors, and stitch markers (optional but helpful for keeping track of rounds).

Gauge: One granny square (4 rounds) = 4 inches x 4 inches. Be sure to check your gauge before starting to ensure your cardigan fits as intended.

Step-by-Step Instructions

This cardigan is constructed from 12 large granny squares (each 12 inches x 12 inches) and 2 half squares for the front panels. The squares are joined together in a specific layout to create the cardigan shape, then a simple border is added. Follow along carefully, and you'll have a beautiful, handmade garment in no time.

Granny Square Pattern (Make 12 Full Squares)

Each full square is worked in the round, starting from a magic ring. The pattern increases on each side, creating a classic granny square with ch-2 corners and ch-1 side spaces.

Round 1: With sage green yarn, make a magic ring. Chain 3 (counts as first dc), 2 dc into ring, chain 2, (3 dc, chain 2) 3 times into ring. Slip stitch to top of beginning chain-3. (12 dc, 4 ch-2 spaces)

Round 2: Slip stitch into the next 2 dc and into the ch-2 space. Chain 3, 2 dc in same space, chain 1, (3 dc, chain 2, 3 dc) in next ch-2 space, chain 1. Repeat from * around, ending with 3 dc in the first ch-2 space, chain 2, slip stitch to top of beginning chain-3. (24 dc, 4 ch-2 corners, 4 ch-1 sides)

Round 3: Slip stitch into the next 2 dc and into the ch-2 space. Chain 3, 2 dc in same space, chain 1, (3 dc in next ch-1 space, chain 1) across to next corner, (3 dc, chain 2, 3 dc) in corner ch-2 space, chain 1. Repeat from * around, ending with 3 dc in the first corner space, chain 2, slip stitch to top of beginning chain-3. (36 dc, 4 ch-2 corners, 8 ch-1 sides)

Round 4: Repeat Round 3. (48 dc, 4 ch-2 corners, 12 ch-1 sides)

Rounds 5–12: Continue repeating Round 3, increasing the number of ch-1 spaces on each side by one each round. At the end of Round 12, fasten off and weave in ends. Each square should measure 12 inches.

Half Square Pattern (Make 2)

The half squares are worked in rows, creating a triangle shape that will form the neckline of the cardigan. These are essential for the deep V-neck shaping.

Round 1: Chain 4, join with slip stitch to form a ring. Chain 3, 2 dc in ring, chain 2, (3 dc, chain 2) 2 times, 3 dc in ring. (9 dc, 3 ch-2 spaces) – this creates a triangle shape.

Round 2: Chain 3, turn. 2 dc in first dc, chain 1, (3 dc, chain 2, 3 dc) in next ch-2 space, chain 1, (3 dc, chain 2, 3 dc) in next ch-2 space, chain 1, 3 dc in last dc. (18 dc, 2 ch-2 corners, 3 ch-1 sides)

Round 3: Chain 3, turn. 2 dc in first dc, chain 1, (3 dc in next ch-1 space, chain 1) across to corner, (3 dc, chain 2, 3 dc) in corner, chain 1, (3 dc in next ch-1 space, chain 1) across to corner, (3 dc, chain 2, 3 dc) in corner, chain 1, 3 dc in last dc. (24 dc, 2 ch-2 corners, 5 ch-1 sides)

Rounds 4–12: Continue in this manner, increasing as established, until the half square measures 12 inches along the straight edge. Fasten off.

Assembly: Joining the Squares

Now comes the fun part—putting it all together! Lay out your squares as follows to create the cardigan shape:

• Back Panel: 4 full squares in a 2x2 grid.
• Front Panels: 2 full squares stacked vertically on each side of the back panel, with the half squares at the top of each front panel to create the neckline shaping.
• Sleeves: 2 full squares folded in half to form a tube, attached to the sides of the body.

Using a whip stitch or slip stitch, join the squares together with the right sides facing. Join the shoulder seams (top of front panels to back panel), then join the side seams, leaving armhole openings. Attach the sleeve tubes to the armholes.

Border and Finishing

To give your cardigan a polished edge, add a simple single crochet border around the bottom.

Round 1: Attach yarn to the bottom edge of the cardigan. Chain 1, single crochet evenly around the entire bottom edge, working 3 sc in each corner. Join with slip stitch.

Round 2: Chain 1, single crochet in each stitch around, working 3 sc in each corner. Join and fasten off.

Finishing: Weave in all ends. Block the cardigan to shape if desired—this will help the squares lay flat and give your cardigan a professional finish.

Final Thoughts

And there you have it—a stunning, oversized granny square cardigan that's as cozy as it is stylish. The muted sage green color and open stitch pattern make it a versatile piece for any wardrobe. Whether you're curling up with a book or heading out for a casual day, this cardigan is sure to become a favorite. Happy crocheting!