Square 9! Crochet Along Afghan Sampler (September): Your Complete Guide to This Month’s Block

There is something uniquely satisfying about a crochet along. The rhythm of working alongside a community, the anticipation of each new square reveal, the gradual accumulation of blocks that will eventually become something warm and beautiful — it all adds up to one of the most rewarding experiences in the fiber arts world. If you have been following along with the Afghan Sampler Crochet Along, you already know exactly what I mean. And now, here we are at Square 9, the September installment, and it might just be one of the most stunning blocks in the entire project so far.

Whether you are a longtime participant who has been crocheting since Square 1, or you are just discovering this crochet along and wondering whether to jump in, this post has everything you need. We will walk through what makes Square 9 special, talk through the skills and stitches involved, discuss yarn and hook choices, share tips for getting clean results, and think ahead to how this block will look alongside the rest of your growing sampler afghan. Grab your hook, settle into your favorite chair, and let’s talk about September’s square.

What Is the Afghan Sampler Crochet Along?

For anyone new here, a quick overview. The Afghan Sampler Crochet Along is a year-long project in which participants make one featured square each month. By the end of the year, you will have twelve unique blocks that can be joined together into a full-sized sampler afghan. The beauty of a sampler is that each square showcases a different stitch pattern or technique, so by the time you finish, you have essentially completed a guided tour through a wide range of crochet skills.

This particular crochet along has attracted crafters of all experience levels, from those who just learned to chain last spring to seasoned crocheters looking for a structured project with community energy behind it. The squares are designed to be challenging enough to be interesting but approachable enough that someone willing to take their time can work through them successfully.

Each month builds on the last. By Square 9 in September, you have already developed a solid vocabulary of stitches and techniques. You know how to read a pattern with more confidence. Your tension has probably evened out considerably from where it was in January or February. Square 9 rewards all of that practice.

What Makes Square 9 Special

September’s square is one of those blocks that looks far more complex than it actually is — which is, honestly, the best kind of crochet project. At first glance, the texture is rich and layered, with what appears to be an intricate interplay of raised stitches and open lacework. But once you break it down row by row (or round by round, depending on the construction method), you start to see the logic behind it.

The pattern uses a combination of post stitches and cluster stitches to create that dimensional, almost sculptural quality. Post stitches — whether front post or back post — are the secret weapon of textured crochet. They work around the post of the stitch below rather than through the top loops, which means the stitch sits forward or backward on the fabric, creating a raised ridge or recessed groove. Clusters, meanwhile, pull several partially completed stitches together at the top, creating a satisfying gathered point.

What Square 9 does beautifully is alternate these two elements in a way that creates movement across the surface of the block. Your eye travels across the square naturally, drawn by the rhythm of texture and relief. When this block sits alongside the others in your finished afghan, it will provide a wonderful visual anchor — substantial and interesting without being busy or overwhelming.

Skills and Stitches You Will Use

Let’s get specific about what this square involves so you can prepare yourself before casting on.

Front Post Double Crochet (FPdc): This is one of the foundational post stitches. Instead of inserting your hook under the top two loops of the stitch below, you insert it from the front, around the post of the stitch, and out the front again on the other side. The resulting stitch sits on the surface of your work, creating a raised line. If you have done ribbing or cabled crochet before, this stitch will feel familiar. If it is new to you, a few practice swatches will go a long way.

Back Post Double Crochet (BPdc): The companion to FPdc, this stitch works the same way but from the back. It pushes the stitch behind the fabric, creating a recessed line. When FPdc and BPdc alternate, they form the kind of ribbed texture that is incredibly satisfying both to make and to touch.

Double Crochet Clusters (dc-cl): A cluster stitch involves beginning several double crochets into the same stitch or space, leaving each one unfinished (with two loops remaining on your hook), and then pulling your yarn through all the loops at once to close the cluster. The result is a gathered, petal-like shape that adds lovely dimension. In Square 9, clusters appear at regular intervals, giving the block its characteristic patterned rhythm.

Chain spaces: Open chain spaces interspersed through the pattern allow light through the block and soften what could otherwise be a very heavy, dense texture. They also make the block reversible in a way, since the lacework is attractive from both sides.

Standard double crochet (dc): Of course, the workhorse stitch of crochet holds everything together. Much of the square’s foundation is built in standard double crochet, with the more specialized stitches placed strategically on top of that framework.

If any of these stitches are unfamiliar to you, I genuinely encourage you not to panic and not to skip this square. The learning curve for each one is quite manageable, and there are wonderful video tutorials available online for every stitch mentioned. Post stitches in particular tend to click quickly once you see the motion demonstrated visually. Give yourself permission to work a small practice swatch before you start the actual square, and you will feel far more confident going in.

Yarn and Hook Recommendations

The Afghan Sampler Crochet Along is designed to work with a consistent yarn weight throughout the year, which makes joining the squares much easier when the time comes. If you have been using the same yarn for all eight previous squares, continue with that same choice for Square 9. Consistency in yarn weight, fiber content, and even dye lot (when possible) will give your finished afghan a cohesive, polished look.

For those just joining the crochet along with this square, or for anyone who wants a refresher on what works best, here are some general guidelines.

A medium weight yarn, commonly labeled as worsted weight or size 4, is the most popular choice for this project. It creates squares with enough body to hold their shape through blocking and joining, while still being flexible and drapy enough to feel comfortable as a finished blanket. Acrylic yarns in this weight are widely available, budget-friendly, and exceptionally easy to care for — a major practical consideration if you plan to actually use your finished afghan rather than display it. Many crafters opt for a superwash wool or a wool-acrylic blend for a bit of extra loft and that coveted halo of warmth.

For Square 9 specifically, the textural nature of the pattern benefits from a smooth, plied yarn rather than a fluffy or loosely spun one. You want your post stitches and clusters to be clearly defined, and a smooth yarn lets the stitch definition shine. A very fuzzy yarn (like a mohair blend) would obscure the beautiful texture you are working so hard to create. Save that kind of yarn for a simpler, more forgiving pattern.

Hook size should match your yarn’s label recommendation and, more importantly, should produce the gauge specified in your pattern. For most worsted weight yarns in this crochet along, a 5.0mm or 5.5mm hook is typical. However, if you have been crocheting tight or loose throughout this project and have adjusted your hook size to compensate, stick with whatever size has been giving you correctly sized squares all year.

Getting Started: Preparing for Success

Before you crochet a single stitch of Square 9, there are a few things worth doing that will make your experience smoother.

Read through the entire pattern once before you begin. I know this advice comes up constantly and feels like something you can skip, but for a textured square with alternating stitch types, a full read-through helps you understand the rhythm of the pattern before you are in the middle of it. You will notice where the post stitches appear, anticipate where the clusters fall, and understand how the rows or rounds build on each other. This big-picture understanding prevents a lot of mid-project confusion.

Make a gauge swatch if you are new to this crochet along or if you have switched yarn or hook since your last square. A gauge swatch for a textured pattern should include a few repeats of the main stitch pattern, not just plain double crochet, because post stitches and clusters can affect your row gauge differently than basic stitches.

Have stitch markers on hand. For a square worked in rows, you will want to mark the first and last stitch of each row to prevent accidental increases or decreases at the edges. It sounds like a small thing until you finish a square and notice it has drifted into a trapezoid shape.

Finally, set up your workspace so you can refer to your pattern easily. Whether that means printing it out, using a pattern holder, propping up your tablet, or bookmarking the page, having the pattern accessible without needing to scroll or search mid-row keeps you in the flow of the work.

Working Through Square 9: Helpful Tips by Section

Without reprinting the full pattern here (always refer to the official pattern for your row-by-row instructions), there are some general tips that apply to the structure of Square 9 that will help you work through it more confidently.

When working front post double crochets, pay attention to which post you are working around. It is easy to accidentally skip a stitch or work into the wrong post when the fabric starts to develop texture and things look visually busy. Count your stitches at the end of every row until the pattern feels fully automatic. One misplaced post stitch can throw off the alignment of the entire design.

When working clusters, keep your tension consistent. The tendency when pulling through several loops at once is to either pull too tight (which distorts the cluster and the surrounding fabric) or too loosely (which leaves a sloppy, open look). Practice finding a middle tension that gives a neat, gathered point without puckering the fabric underneath.

The chain spaces in this pattern are important for sizing. Be careful not to accidentally skip a chain space or work into the wrong location after a chain sequence. If the pattern says to work into a chain-2 space, work into the space itself, not into one of the individual chain stitches.

If you find a particular row confusing, stop at the end of that row and count your stitches before continuing. It is far easier to identify and fix an error at the end of a row than to discover it five rows later.

Blocking Square 9

Blocking is transformative for textured squares like this one. Before blocking, a crochet square can look slightly uneven, with edges that want to curl or ripple and stitches that seem inconsistent. After blocking, the stitches open and settle, the square flattens to its correct dimensions, and the texture becomes much more defined and beautiful.

For acrylic yarn, wet blocking or steam blocking both work well. If you choose to wet block, soak the square in cool water until it is thoroughly saturated, gently squeeze out the excess water without wringing, then lay it flat on a blocking mat and pin it to the correct dimensions. Allow it to dry completely before unpinning.

For wool or wool-blend yarn, wet blocking is the classic method and often produces the loveliest results. Wool relaxes beautifully when wet and holds its blocked shape exceptionally well once dry.

Steam blocking with a garment steamer or iron held above the fabric (never directly touching acrylic, as it will melt) is a faster option that works well for getting a quick result.

Square 9 in particular benefits from careful pinning along the edges to ensure it matches the dimensions of your other squares precisely. Joining is much easier when all your squares are the same size.

Color Considerations

If you are working this crochet along in a single consistent color across all twelve squares, Square 9 will showcase your yarn choice beautifully. The texture speaks for itself in a solid or semi-solid colorway.

If you have been alternating colors between squares or working through a gradient collection, September is a wonderful month to consider something that evokes the season. Deep jewel tones — burgundy, forest green, mustard, rust — look absolutely stunning in a highly textured square like this one. The shadows that fall between raised and recessed stitches are more dramatic in medium to deep colors, making the texture pop even more than it would in a pale shade.

That said, working in a lighter color makes it easier to see your stitches clearly while you are learning the pattern. If Square 9 is a particularly challenging block for you, choosing a lighter yarn color for learning purposes is a completely valid approach.

Sharing Your Progress

One of the most joyful aspects of a crochet along is the community dimension. If you have not already found the group of people working through this Afghan Sampler alongside you, now is a wonderful time to seek them out. There are Facebook groups, Instagram hashtags, Ravelry threads, and Discord servers dedicated to exactly this kind of shared project, and the encouragement, troubleshooting help, and sheer inspiration of seeing other people’s finished squares is genuinely wonderful.

When you share your Square 9, consider sharing a photo that shows the texture clearly — a slight angle or a side light rather than a flat overhead shot will make those beautiful post stitches and clusters visible in a way that does justice to all your hard work. Other crafters will thank you for it, and you will thank yourself later when you are looking back at your progress photos.

Looking Ahead: The Growing Sampler

With Square 9 complete, you are three-quarters of the way through the year and three-quarters of the way through your sampler afghan. Take a moment to lay out all nine of your completed squares together. See how the variety of textures and patterns creates a tapestry of technique. Notice how much your crocheting has developed since Square 1.

October, November, and December will bring three more squares, each one building further on the skills you have accumulated. And then comes the joining and border work, which will transform twelve individual blocks into a finished, cohesive blanket — something that can be folded over a couch, carried on travels, gifted to someone you love, or passed down eventually as a testament to a whole year of creative dedication.

Square 9 is more than just another block in a series. It is a September milestone, a skill achievement, and one more piece of something genuinely beautiful that you are making with your own hands. Take your time with it, enjoy the process, and be proud of what you create.

Happy crocheting.