Sunflower Granny Square Blanket – Free Crochet Pattern

There is something undeniably cheerful about sunflowers. Their bold yellow petals and dark, rich centers carry the warmth of summer into every room they touch, and when you recreate that energy in yarn, the result is nothing short of magical. This Sunflower Granny Square Blanket is one of those projects that feels just as good to make as it does to look at once it’s finished. Whether you’re a seasoned crocheter looking for a satisfying weekend project or someone who has just mastered the basic granny square and is ready to take things a little further, this pattern is for you.

Here at Jo to the World Creations, the goal is always to bring you patterns that are approachable, beautiful, and genuinely enjoyable to work through. This free crochet pattern walks you through every step of making a sunflower granny square, joining your squares together, and finishing your blanket with a clean, polished border. By the end, you’ll have a stunning throw that works just as well draped over a couch as it does spread across a bed.

Let’s get started.

Why You’ll Love This Sunflower Granny Square Pattern

Before we dive into the actual steps, let’s talk about what makes this pattern special. The sunflower granny square builds on the classic granny square construction you may already know, but it introduces a layered petal technique that gives each square genuine dimension and texture. The petals are worked in a way that makes them slightly raised off the background, which means your finished blanket has that gorgeous sculptural quality that makes people stop and ask, “Did you really make that yourself?”

The color palette is another reason to love this project. The traditional version uses a golden yellow for the petals, a rich chocolate brown or dark olive for the center, and an earthy green or crisp white for the background and joining rows. But the beauty of this design is how flexible it is. You could go with a muted, vintage palette using mustard, cream, and sage. You could go bold with a warm terracotta center and bright yellow petals against a navy background. You could even make each square a completely different colorway for a wildflower meadow effect. The structure of the pattern stays the same no matter what colors you choose.

Materials You’ll Need

To make this blanket in a standard throw size (approximately 48 x 60 inches), gather the following:

Yarn: Worsted weight yarn in three colors. You’ll need approximately 1,200 yards of your petal color (yellow), 600 yards of your center color (dark brown or deep gold), and 1,400 yards of your background and joining color (white, cream, or green). A smooth, consistent yarn works best for this pattern because the stitch definition matters when you’re working the petal rounds.

Hook: A 5.0mm (H/8) crochet hook is recommended for worsted weight yarn, though you should always check your tension against the gauge swatch before committing to a hook size.

Notions: A yarn needle for weaving in ends, scissors, and stitch markers if you like to use them for keeping track of rounds. A blocking mat and pins are optional but make a noticeable difference in the finished appearance of each square.

Gauge: Each finished sunflower granny square should measure approximately 6 inches by 6 inches after light blocking. If your squares are coming out larger, try a smaller hook. If they’re smaller, go up a hook size.

Abbreviations Used in This Pattern

This pattern uses standard US crochet terminology. Here is a quick reference for the abbreviations you’ll encounter:

ch – chain, sl st – slip stitch, sc – single crochet, dc – double crochet, tr – treble crochet, sp – space, rep – repeat, beg – beginning, st – stitch, RS – right side, WS – wrong side.

When the pattern says “join with sl st,” it means you should slip stitch into the first stitch or chain of that round to close it.

The Sunflower Granny Square Pattern

This square is worked in the round from the center outward. You will use all three of your colors across five rounds. The magic ring (or adjustable loop) is the recommended starting technique because it allows you to close the center tightly, but you can also chain 4 and join to form a ring if you prefer.

Round 1 – The Center (Color A: Dark Brown or Deep Gold)

Make a magic ring. Chain 3 (counts as first dc), work 11 more double crochets into the ring, join with a slip stitch to the top of the beginning chain 3. Pull the magic ring closed. You will have 12 double crochets total. Fasten off and weave in ends, or carry the yarn to the back if you prefer.

This round creates the tightly packed center of your sunflower. Keep your tension even through this round because a lumpy center will affect how your petals sit in the next round.

Round 2 – The Petal Bases (Color B: Yellow)

Join Color B to any stitch of Round 1 with a slip stitch. Chain 1, single crochet in the same stitch. Chain 4, skip 1 stitch, single crochet in the next stitch. Repeat the “chain 4, skip 1, single crochet” sequence all the way around. You should end with 6 chain-4 loops total. Join with a slip stitch to the first single crochet. Do not fasten off.

These chain loops are the foundation for your petals. They will arch up away from the center, which is exactly what you want.

Round 3 – The Petals (Color B: Yellow, continued)

Now you will work into each chain-4 loop from the previous round to form the petals. For each chain-4 loop, work the following: slip stitch into the loop, chain 3, 4 treble crochets into the same loop, chain 3, slip stitch into the same loop. This completes one petal. Repeat this sequence in each of the remaining 5 chain-4 loops. You will have 6 petals total. Join with a slip stitch to close the round. Fasten off Color B and weave in ends.

Take a moment here to look at your sunflower center and petals from the right side. The petals should be fanning outward from the center with a nice, full shape. If they look too flat, the issue is usually tension in the treble crochets — try working them a bit more loosely.

Round 4 – The Background Round (Color C: White, Cream, or Green)

This is where your sunflower becomes a square. Join Color C to the back of the work, inserting your hook between two petals so that you’re working behind the petal layer. This is the key to keeping the petals lifted at the front.

Chain 4 (counts as first treble crochet), work 1 more treble crochet in the same space. (Chain 2, 2 treble crochets in the same space) — this forms the first corner. Now move to the next space between petals. Work 3 double crochets in this space. Move to the next space and work another corner: (2 treble crochets, chain 2, 2 treble crochets). Continue alternating between 3-dc sides and corner clusters, working a total of 4 corners and 4 side clusters. Join with a slip stitch to the top of the beginning chain 4.

You now have a recognizable square shape forming around your sunflower, with clear corner spaces defined by the chain-2 gaps.

Round 5 – The Outer Granny Round (Color C: White, Cream, or Green)

Chain 3 (counts as first dc). Work 2 more double crochets in the same corner chain-2 space (this is the beginning corner cluster). Chain 2 to complete the corner, then work 3 more double crochets in the same space to form the other half of the corner. Chain 1. Work 3 double crochets in the side space between the corner clusters from the previous round. Chain 1. Work the full corner cluster (3 dc, ch 2, 3 dc) in the next corner chain-2 space. Repeat this sequence around all four sides and corners. Join with a slip stitch to the top of the beginning chain 3. Fasten off and weave in ends.

Your sunflower granny square is now complete. It should look neat, square, and wonderfully cheerful. Make as many as you need to reach your desired blanket size. For a 48 x 60 inch throw at 6 inches per square, you’ll need 80 squares (8 squares wide by 10 squares tall).

Blocking Your Squares

If you’ve never blocked your crochet projects before, this pattern is a wonderful reason to start. Blocking simply means wetting your finished squares, gently shaping them to their final dimensions, and allowing them to dry flat. The difference it makes is remarkable — your squares will lie flat, the petals will sit more beautifully, the corners will be crisp, and joining them will be much easier because every square will be exactly the same size.

To wet block, submerge each square in cool water for about 10 to 15 minutes, then gently squeeze out the excess water without wringing. Lay the square on your blocking mat, use your fingers to ease it into a perfect square shape, pin the corners and a few points along each side, and leave it to dry completely. For most yarn types, this takes around 24 hours.

Joining Your Squares

There are several methods for joining granny squares, and the one you choose will affect the final look of your blanket. Here are two popular options that work beautifully with this pattern.

Flat Slip Stitch Join: Hold two squares together with right sides facing each other and use your background color to slip stitch through the back loops of both squares simultaneously, working along one edge. This creates a subtle raised seam on the right side of the blanket that adds a nice graphic element, almost like the squares are framed.

Join-as-You-Go (JAYG): Rather than making all your squares and then sewing or slip stitching them together at the end, you join each new square to the previous one during the final round. When you reach a side that touches a completed square, instead of chaining 1 between clusters, you work a slip stitch into the corresponding chain-1 space on the finished square. This method eliminates most of the finishing work and creates a nearly invisible seam.

For a throw blanket with 80 squares, the join-as-you-go method is particularly time-saving and keeps the project feeling fresh because you can see it growing as you work.

Adding the Border

A well-chosen border does a lot of work for a blanket. It ties all the squares together visually, it stabilizes the outer edges, and it gives your project that polished, finished-from-a-pattern look rather than a still-in-progress look. For the Sunflower Granny Square Blanket, a simple two-round border works beautifully.

Border Round 1: Join your background color to any corner chain-2 space on the outside edge of the assembled blanket. Work a corner cluster (3 dc, ch 2, 3 dc) into the corner space. Work 3 double crochets into every chain-1 space and every seam space along each side, and a corner cluster at each of the four outer corners. When you reach the end of the round, join with a slip stitch and do not fasten off.

Border Round 2: Slip stitch to the corner chain-2 space. Work another round of 3-dc clusters along every side, adding a corner cluster at each corner. You can finish here for a clean, classic border, or add a round of single crochets in yellow or the center color for a little pop of color at the very edge.

Tips for Making This Project a Success

If you’re planning to make this as a gift or for sale, keeping your tension consistent from the very first square to the very last is the most important thing you can do. Tension naturally shifts as you get more familiar with a pattern, so it’s worth checking your square dimensions every dozen squares or so and adjusting your hook if needed.

When fastening off between rounds, leave a longer tail than you think you need. Weaving in ends on granny squares can be fiddly because of all the chain spaces, and a longer tail gives you more to work with so you can really secure it.

If you’re using a multicolor approach and making each square a different colorway, lay all your finished, blocked squares on the floor before you start joining to audition the arrangement. Moving squares around at this stage costs you nothing. Moving them after you’ve joined half the blanket costs you a lot of seam ripping.

Finally, don’t underestimate the power of a good yarn choice. This pattern is worked in worsted weight because the stitch definition makes the petals look crisp and full. Bulky yarn will give you a squishier, more casual version. Fingering weight yarn will give you a delicate, heirloom-quality piece, but be prepared for the project to take significantly longer and require a much larger square count.

Pattern Notes and Sizing Adjustments

The pattern as written produces a square that is approximately 6 inches. For a lap blanket (roughly 36 x 48 inches), you’ll need about 48 squares. For a full-size bed throw (approximately 60 x 80 inches), plan for around 130 squares. You can also make a single square and use it as a coaster, a dishcloth, or a small decorative accent.

If you’d like to make your squares slightly larger, simply add more rounds in your background color before you do the final outer granny round. Each additional round adds approximately 1 to 1.5 inches to the overall square size.

Share Your Sunflower Blanket!

There is nothing that brings more joy here at Jo to the World Creations than seeing the projects you make from these patterns. Once your Sunflower Granny Square Blanket is finished, please share a photo and tag us. Seeing your color choices, your finished squares, and the faces of the people who receive these blankets as gifts is the whole reason patterns like this exist.

If you have questions at any point while working through this pattern, leave a comment below. The community here is wonderfully supportive, and chances are someone else has had the same question and found an answer that will help you too.

Happy crocheting, and may every round bring a little more sunshine into your day.