I Made a Crochet Cardigan for Summer and Spring — Here’s the Full Tutorial

There is something deeply satisfying about slipping on a garment you made with your own two hands. I have been crocheting for years, and every time I finish a wearable piece, that feeling never gets old. This summer and spring crochet cardigan has become one of my all-time favorite makes — it is lightweight, breathable, endlessly wearable, and honestly looks like something you would find in a boutique shop window. And today, I am walking you through every single step so you can make one too.

Whether you are a confident beginner who has tackled a few projects or an intermediate crocheter looking for something fresh to add to your warm-weather wardrobe, this tutorial is for you. I will cover the materials you need, the stitches used, sizing notes, and row-by-row instructions so you never feel lost. Grab your hook, find a cozy spot, and let’s get into it.

Why a Crochet Cardigan Is Perfect for Spring and Summer

Before we dive into the pattern, let me tell you why this project is worth your time during warmer months. Most people associate crochet with chunky blankets and thick winter sweaters, but crochet is actually one of the best crafts for making light, airy warm-weather clothing. The open-stitch structure of many crochet fabrics allows for natural ventilation, meaning your skin can breathe even when the temperature climbs.

A lightweight crochet cardigan sits in that perfect sweet spot between a full top and a jacket. It gives you coverage for breezy evenings without making you sweat on a warm afternoon. It layers beautifully over sundresses, tank tops, and high-waisted shorts. It packs flat in a bag for beach trips, picnics, or travel. And because it is handmade, it will be completely unique — nobody at the farmers market will have the exact same piece.

I designed this particular cardigan to be relaxed and flowy rather than structured or fitted. Think casual elegance. Think soft drape and effortless cool. It is the kind of piece you throw on without thinking and immediately get compliments on.

Materials You Will Need

Getting your materials together before you start will make the whole process feel smooth and enjoyable. Here is what I used for this cardigan.

Yarn: I chose a cotton-linen blend yarn in a warm cream color. Cotton and linen blends are ideal for spring and summer crochet garments because they are breathable, have a lovely drape, and do not stretch out of shape over time the way acrylic can. You want something labeled as DK weight or light worsted weight for this project. A 100% cotton yarn works beautifully too if you cannot find a blend. For a finished size small or medium, you will need approximately 800 to 1,000 yards. For a large or extra large, plan for around 1,100 to 1,300 yards.

Hook: I used a 4.5mm crochet hook, which pairs well with DK weight yarn. Depending on your tension, you may want to go up to a 5mm or down to a 4mm to match gauge.

Notions: You will need a yarn needle for weaving in ends, scissors, stitch markers, and a measuring tape. I also recommend having a few bobby pins or locking stitch markers on hand to hold pieces together when seaming.

Optional: If you want to add buttons, you will need three to five of them depending on how you style the front. I left my cardigan open-front with no closure, which gives it that relaxed boho feel, but buttons can make it feel more polished and finished.

Gauge and Sizing

Before you begin crocheting the body of this cardigan, please make a gauge swatch. I know — nobody loves making swatches — but for a wearable garment, gauge genuinely matters. A few stitches off per inch can make the difference between a cardigan that fits perfectly and one that is several sizes too large or too small.

Gauge: 14 stitches and 16 rows = 4 inches in single crochet, using a 4.5mm hook and DK weight yarn.

Crochet a swatch of at least 20 stitches wide and 20 rows tall, then measure the center portion. If your gauge is too loose (meaning you are getting fewer stitches per 4 inches than called for), go down a hook size. If your gauge is too tight, go up a hook size.

Sizes: This pattern is written for sizes XS through XXL. The finished measurements are as follows — XS: 32 inches bust, S: 36 inches bust, M: 40 inches bust, L: 44 inches bust, XL: 48 inches bust, XXL: 52 inches bust. The cardigan is designed with about 4 to 6 inches of positive ease, meaning it will be relaxed and flowy rather than fitted. Choose your size based on your actual bust measurement, not your typical clothing size.

When the pattern lists numbers in parentheses separated by commas, they correspond to the sizes in order: XS, S, M, L, XL, XXL.

Stitches Used

This cardigan uses only a handful of stitches, which makes it wonderfully beginner-friendly despite producing a beautiful result.

Chain (ch): The foundation of nearly all crochet.

Single crochet (sc): The tightest, most compact basic stitch. We use this for ribbing and some structural sections.

Half double crochet (hdc): Taller than a single crochet, with a lovely soft texture. This is the main stitch for the body of the cardigan.

Double crochet (dc): Used in the lace panel sections and the hem border.

Chain space (ch-sp): The gaps created by chaining between stitches, which give the fabric its open, airy quality.

We will also use basic increases and decreases for shaping the sleeves and neckline, but nothing complicated.

Pattern Instructions

Abbreviations

ch = chain, sc = single crochet, hdc = half double crochet, dc = double crochet, sl st = slip stitch, sk = skip, sp = space, st(s) = stitch(es), rep = repeat, RS = right side, WS = wrong side, beg = beginning, rem = remaining, tog = together, yo = yarn over.

The Back Panel

Chain 57 (63, 71, 77, 85, 91). This is your foundation chain.

Row 1 (WS): Starting in the 3rd chain from the hook, hdc across. You will have 55 (61, 69, 75, 83, 89) stitches. Chain 2 and turn.

Rows 2 through 10: Hdc in each stitch across. Chain 2 and turn at the end of each row.

Row 11 (lace row): Hdc in the first 3 stitches. Chain 1, skip 1, hdc in the next stitch. Repeat from to across until 3 stitches remain. Hdc in the last 3 stitches. Chain 2 and turn.

Row 12: Hdc in the first 3 stitches. Hdc in the chain-1 space, hdc in the next hdc. Repeat across until 3 stitches remain. Hdc in the last 3 stitches. Chain 2 and turn. You should have the same stitch count as before.

Repeat rows 11 and 12 a total of 3 times (you will have worked 3 lace rows with solid rows between them), then continue in straight hdc until the back panel measures 14 (14.5, 15, 15.5, 16, 16.5) inches from the foundation chain, ending on a WS row.

Armhole Shaping: Slip stitch across the first 5 (5, 6, 6, 7, 7) stitches. Chain 2 and hdc across until 5 (5, 6, 6, 7, 7) stitches remain unworked. Turn. You will now have 45 (51, 57, 63, 69, 75) stitches.

Continue in hdc, decreasing one stitch at each end every row 3 (3, 4, 4, 5, 5) times. To decrease: chain 2 at the beginning of the row counts as the first hdc, but you will work an hdc2tog across the first two stitches, then work normally until 2 stitches remain and work an hdc2tog to finish.

You will now have 39 (45, 49, 55, 59, 65) stitches remaining.

Continue in hdc with no shaping until the armhole measures 8 (8.5, 9, 9.5, 10, 10.5) inches. Fasten off and weave in your ends. Set the back panel aside.

The Front Panels (Make Two, Mirroring Each Other)

The cardigan fronts are worked separately and then seamed. Because this is an open-front cardigan, each front panel is roughly half the width of the back.

Chain 29 (32, 36, 39, 43, 46).

Row 1 (WS): Starting in the 3rd chain from the hook, hdc across. You will have 27 (30, 34, 37, 41, 44) stitches. Chain 2 and turn.

Follow the same row sequence as the back panel — solid rows, then lace rows — until the front panel measures the same as the back at the armhole point (14 to 16.5 inches depending on your size).

Armhole Shaping (outside edge only): For the right front panel, slip stitch across the first 5 (5, 6, 6, 7, 7) stitches and continue to the end of the row. For the left front panel, work across until 5 (5, 6, 6, 7, 7) stitches remain and leave those unworked. Turn.

Decrease one stitch on the armhole edge every row 3 (3, 4, 4, 5, 5) times, the same way you did for the back.

Continue with no further armhole shaping.

When the armhole measures 5 (5, 5.5, 5.5, 6, 6) inches, begin the neckline shaping.

Neckline Shaping: On the front inner edge, decrease one stitch every row 6 (6, 7, 7, 8, 8) times total. This creates a gentle angled neckline rather than a deep V or a round neck.

After all shaping is complete, continue until the armhole depth matches the back panel. Fasten off. Make the second front panel as a mirror image of the first.

The Sleeves (Make Two)

These sleeves are designed to be a relaxed three-quarter length, hitting just below the elbow. If you prefer a longer sleeve, simply add extra rows before the cap shaping.

Chain 43 (45, 49, 53, 57, 61).

Row 1 (WS): Hdc in the 3rd chain from the hook and across. You will have 41 (43, 47, 51, 55, 59) stitches. Chain 2 and turn.

Work in hdc for 4 rows with no shaping.

Increase Row: Increase one stitch at each end of this row by working two hdc into the first stitch and two hdc into the last stitch. You will have 43 (45, 49, 53, 57, 61) stitches.

Repeat this increase every 6th row until you have 51 (53, 57, 63, 67, 73) stitches.

Continue even until the sleeve measures 13 (13, 13.5, 13.5, 14, 14) inches from the foundation chain.

Sleeve Cap Shaping: Slip stitch across the first 5 (5, 6, 6, 7, 7) stitches at the beginning of the next two rows. Decrease one stitch at each end of every row until 15 (15, 17, 17, 19, 19) stitches remain. Fasten off, leaving a long tail for seaming.

Assembling the Cardigan

Lay out all your pieces with the right side facing up. You should have one back panel, two front panels, and two sleeves.

Using a yarn needle and a length of matching yarn, seam the shoulder seams first. Hold the back panel and one front panel together with right sides facing. Whipstitch or use a mattress stitch across the shoulder edges. Repeat for the other side.

Next, attach the sleeves. Pin or hold each sleeve cap into the armhole opening, easing in any fullness as you go. The top center of the sleeve cap should align with the shoulder seam. Seam around the entire armhole.

Finally, seam the side seams and the sleeve underarm seams in one continuous line from the hem of the cardigan up through the underarm and down to the cuff of the sleeve.

Finishing — The Border and Ribbing

This is where the cardigan really comes together and starts looking polished.

Hem Ribbing: Join your yarn at the bottom hem of the cardigan with a slip stitch. Work a row of sc across the entire hem, then turn and work into the back loops only for 6 rows. This creates a subtle ribbed texture that adds weight and keeps the hem from flaring. Fasten off.

Cuff Ribbing: Repeat the same ribbing process at each sleeve cuff.

Front and Neckline Border: This is my favorite part. Join your yarn at the bottom right front edge. Work sc evenly up the right front, across the back of the neck, and down the left front, making sure to place 3 sc into each corner to prevent puckering. On the second pass, work a row of reverse single crochet (also called crab stitch) for a beautifully finished edge that lies flat and has a bit of visual interest. Fasten off and weave in all ends.

Styling Your Summer Crochet Cardigan

Now for the fun part. Here are some of my favorite ways to wear this cardigan throughout the warmer months.

Over a simple white or black tank top and high-waisted jeans, this cardigan creates a put-together casual look that works for brunch, shopping, or a casual work environment. The open front shows off whatever you are wearing underneath without competing with it.

Layered over a sundress or a floral midi dress, the cardigan softens the overall look and adds a bohemian edge. I love pairing the cream version with a rust or terracotta dress for a warm, earthy color palette.

Tied loosely at the waist rather than worn open, the cardigan takes on a completely different silhouette — more defined and a little more structured. This is especially flattering with wide-leg trousers.

For beach or pool days, wearing the cardigan over a swimsuit is the perfect cover-up. It offers enough coverage for walking to the beach café or exploring a seaside town without trapping heat.

Tips for Making This Project a Success

Use a yarn with some natural fiber content rather than pure acrylic for warm-weather garments. Cotton, linen, bamboo, and blends of these fibers drape beautifully and feel so much more comfortable against your skin in the heat.

Block your finished cardigan before wearing it. Blocking is the process of wetting the finished piece, pinning it to the correct dimensions, and letting it dry. It evens out stitches, opens up the lace sections, and gives the fabric a beautiful drape. For cotton or cotton-linen blends, a simple wet block works wonderfully.

If you find yourself losing track of rows, use stitch markers generously. Marking every 10th row will save you from having to recount from the beginning when you get interrupted (and with a longer project like this, interruptions are inevitable).

Press as you go in the sense of checking your measurements regularly against the pattern dimensions. It is much easier to adjust an extra row or two early in the project than to realize at the seaming stage that your back panel and front panels are different lengths.

Final Thoughts

Making this crochet cardigan genuinely changed the way I think about warm-weather crochet. It proved to me that crochet garments do not have to be bulky, wintery, or casual to the point of sloppy. With the right yarn, the right stitch pattern, and a little attention