Brighten up your day with a pretty Crochet Sunflower Granny Square Cardigan pattern that turns soft yarn into a fun piece of clothing. You will love how special this project feels because it combines the joy of flowers with the warmth of a cozy sweater. It is a great way to use up bits of yarn left over from other work and since you only use simple steps you can finish it even if you are just learning how to hold a hook.

Easy-to-Follow Crochet Sunflower Granny Square Cardigan Pattern

Sunflower Granny Square Cardigan: A Comprehensive Pattern

This pattern provides a complete guide for creating a sunflower-themed cardigan composed of individual granny squares. By combining the natural aesthetic of sunflowers with the classic structure of a granny square, this garment offers a cozy and stylish addition to your wardrobe.

Before You Start

• Read the entire pattern before beginning to understand the construction flow.

• Practice the 3-tr-tog stitch on a scrap piece of yarn to ensure the petals are uniform.

• Ensure you have all necessary yarn quantities before starting to avoid dye-lot variations.

• Maintain consistent tension throughout, especially during the assembly phase.

• Prepare your workstation with adequate lighting to distinguish between dark yarn colors.

Pattern Notes

• The cardigan is constructed by making individual squares and seaming them together in specific panel configurations.

• The project uses US crochet terminology.

• The ch 3 at the start of rounds counts as a dc unless stated otherwise.

• When working the sunflower center, pull the yarn tight when fastening off to keep the circle small.

• The ribbing is worked using post stitches to create an elastic, professional-looking edge.

• Blocking is highly recommended once the cardigan is finished to relax the acrylic fibers and ensure a perfect fit.

How I Made the Crochet Pattern?

• Inspired by sunflower flower keychains, I adapted the petal motif to fit a standard granny square frame.

• I utilized a 4x4, 2x4, and 2x2 grid layout to ensure the cardigan shape was symmetrical and functional.

• I opted for a specific "top-loop only" seaming technique to create a decorative, clean ridge on the exterior.

• The ribbing was designed using alternating front and back post stitches to provide structure and durability.

Skill Level

• Intermediate (Requires knowledge of cluster stitches and post stitches).

Finished Size

• This pattern creates a standard, versatile fit. Adjustments to the number of squares can be made to accommodate different body sizes.

Materials

• Yarn: Weight 4 (Medium/Worsted) acrylic yarn.

  • Dark Brown (Center)

  • Yellow (Petals)

  • Main Color (Granny border and ribbing)

• Crochet Hook: 4.0 mm (Size G-6).

• Tools: Darning/Tapestry needle, sharp scissors.

• Optional: Steamer or iron with steam function (for blocking).

Measurements / Sizing

• The final garment consists of 42 individual squares.

  • Back Panel: 16 squares (4x4).

  • Front Panels: 8 squares per panel (2x4).

  • Sleeves: 4 squares per sleeve (2x2).

  • Pockets: 1 square per pocket.

Gauge

• 1 square measures approximately 4-5 inches (blocked). Tension may vary depending on individual crocheting habits.

Stitch Abbreviations

• ch: Chain

• sl st: Slip stitch

• dc: Double crochet

• tr: Triple (Treble) crochet

• st(s): Stitch(es)

• 3-tr-tog: Three triple crochets worked together (petal stitch)

• FPdc: Front post double crochet

• BPdc: Back post double crochet

Special Stitches

• 3-tr-tog (Petal Stitch): Yarn over twice, insert hook into st, pull up a loop, yarn over, pull through 2, yarn over, pull through 2 (2 loops on hook). Repeat two more times in the same stitch. Yarn over and pull through all 4 loops on the hook. Chain 1 to secure.

The Pattern!

Round 1: The Sunflower Center

• Using Dark Brown yarn, ch 4, and sl st into the first ch to form a ring.

• ch 3 (counts as 1 dc).

• Work 11 dc into the ring (12 dc total).

• sl st into the top of the ch 3 to join.

• Fasten off and pull the tail tight.

For this part, you are creating a small, flat circle that acts as the heart of your sunflower. Ensure you count your stitches carefully so you have exactly twelve double crochets, which provides the base for your flower petals.

Round 2: The Sunflower Petals

• Join Yellow yarn in any st.

• ch 4.

• Work one 3-tr-tog in the same st.

• ch 1 to seal, ch 1 for the chain space.

• Repeat 3-tr-tog in each st around for 12 petals total.

• sl st to the top of the first petal to join.

• Fasten off.

This round is where the sunflower truly takes shape. By grouping your triple crochets together, you create thick, raised petals that sit on top of the dark center. Make sure to maintain even tension so each petal looks the same.

Round 3: The Granny Square Border

• Join Main Color yarn in any ch-2 space.

• ch 3 (counts as 1 dc), 2 dc in same space, ch 2, 3 dc in same space (this creates the corner).

• ch 1, work 3 dc into the next ch-1 space, ch 1.

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• Work 3 dc in the next ch-1 space, ch 1.

• Repeat the corner and side pattern around the square.

• sl st to join.

Now you are turning your round flower into a square. The goal here is to establish the corners of the granny square. By working your stitches into the spaces created by the petals, you give the square its flat, boxy shape.

Round 4: Increasing the Square

• ch 3, 2 dc in corner space, ch 2, 3 dc in same corner.

• ch 1, work 3 dc into each ch-1 space along the sides, ch 1.

• Continue pattern around.

• sl st to join, fasten off, and weave in all ends.

This final round of the square makes it large enough for the cardigan panels. You are simply filling in the spaces along the edge to ensure the square is solid and ready to be sewn to its neighbors.

Assembly & Finishing

• Lay out the squares in the required grid: 4x4 for the back, 2x4 for each front, and 2x2 for each sleeve.

• With right sides facing together, use the darning needle to join the squares.

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• Insert the needle only into the top loops of the edges. This creates a raised, professional "ridge" seam on the exterior.

• Sew the panels in columns first, then join the rows.

• Fold the body at the shoulders to attach the front panels to the back panel.

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• Sew the sleeves into the armholes.

• Fold the entire garment inside out and sew the underarm and side seams.

• Attach pockets to the front panels by sewing along three sides of the granny square.

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Solutions to Common Problems

• Neckline Tightness: If the neck feels too tight, perform the neckline ribbing by placing two dc in every stitch for the 5-7 stitches at the center-back of the neck. This adds extra room and prevents the garment from pulling against the skin.

• Inconsistent Seams: If the seams look uneven, ensure you are counting the loops on each square edge. Working only into the top loop is key to the decorative ridge.

What You Can Make Using These Stitches

• Sunflower Flower Keychains: Use just the center and petal rounds for quick gifts.

• Granny Square Bags: Increase the number of rounds in the granny square to create larger panels for a tote.

• Coasters: Use the sunflower square design on its own as a colorful drink coaster.

• Decorative Pillows: Join several sunflower squares to create a vibrant cover for home decor.

Conclusion

Creating this sunflower granny square cardigan is a rewarding project that bridges the gap between simple crochet techniques and professional garment construction. By following the step-by-step assembly and using the recommended seaming method, you achieve a piece that is not only beautiful but also durable and uniquely yours.