Buttercup: A Free Lace Knitting Pattern for Five-Petaled Flowers

There is something quietly magical about a flower that most people walk past without a second glance. Buttercups grow in meadows and along roadsides, their golden petals catching the afternoon light in a way that feels almost accidental, as if they never meant to be beautiful but couldn’t help themselves. For knitters and fiber lovers, that kind of effortless charm is exactly what makes the buttercup such a compelling motif. Today I’m sharing Buttercup, a free lace knitting pattern for five-petaled flowers that you can use in dozens of different projects — and I want to walk you through everything you need to know to knit it confidently, from the tools you’ll need to the finishing touches that make each tiny bloom come alive.

This pattern lives at the heart of what String Geekery is all about: taking something from the natural world, translating it into yarn and needles, and discovering that the process of making it teaches you as much as the finished object does. Lace knitting has a reputation for being intimidating, but this pattern was designed specifically to be approachable for knitters who are curious about lace but haven’t yet taken the plunge — while still offering enough nuance to be satisfying for those who have been working lace for years.

Let’s talk flowers.

Why Five Petals?

Before we get into yarn weights and needle sizes, I want to spend a moment on the structure of a five-petaled flower, because understanding the geometry of what you’re making is genuinely useful when you’re knitting it.

Most of the familiar wildflowers in the world — roses, pansies, geraniums, and yes, buttercups — are built around a radially symmetric five-petal structure. In botanical terms this is called pentameral symmetry, and it appears so frequently in flowering plants that it’s practically the default template for how flowers work. When you look at a buttercup up close, you can see that each petal is a rounded teardrop shape, slightly reflexed at the tip, with a glossy surface that acts almost like a mirror. The five petals are evenly spaced around a central cluster of stamens, and the whole structure is astonishingly regular.

In knitting, translating that regularity into stitch patterns means working outward from a center point, increasing at even intervals to create five distinct sections that bloom open like the petals themselves. The lace motif in this pattern uses yarn-overs and decreases to create both the openwork texture of lace and the shaping that makes each section curve and widen the way a real petal does. It sounds technical, but once you’ve worked through the first two rounds you’ll feel the logic of it in your hands.

What You’ll Need

One of the best things about this pattern is that it requires very little in the way of materials or equipment. Because each individual flower is small, you can make a significant number of them from a single skein of yarn, which makes this an excellent stash-busting project.

Yarn: This pattern works beautifully in fingering weight or lace weight yarn. I’d particularly recommend a smooth, tightly plied yarn for your first attempt, because the stitch definition will make it easier to see what you’re doing as you work. Plant-based fibers like cotton or bamboo give a lovely crisp result that holds the petal shape well, but wool and wool blends are warmer and have a natural elasticity that makes the lace open up beautifully after blocking. If you want that quintessential buttercup yellow, you’re looking for something in the range of a warm golden yellow to a rich buttery cream — though honestly, this flower shape is stunning in any color, including deep purples, soft pinks, and even a graphic black.

Needles: Double-pointed needles in a size appropriate for your yarn are the way to go. For fingering weight yarn, US size 1 or 2 (2.25 to 2.75mm) needles work well. For lace weight, try a US size 0 (2mm) or even go up a size or two if you prefer a more open, airy result. The fabric should feel relaxed, not tight — you want the yarn-overs to open up into proper little holes that catch the light.

Other supplies: You’ll need a tapestry needle for finishing, a pair of sharp scissors, and blocking supplies. For blocking, you can use blocking mats and pins (T-pins work great), or for something as small as a flower motif, a small piece of foam or even a thick towel will do the job perfectly well. Stitch markers are optional but helpful if you’re new to working in the round with increases.

A Quick Word About Lace Knitting

If you’re new to lace, I want to reassure you about a few things before you cast on.

Lace looks complicated on the needle. It looks like a jumbled mess when you first work it up, with yarn-overs creating loose loops that don’t seem to be doing anything useful. This is completely normal and expected. The magic of lace — genuinely, the most exciting moment in all of knitting — happens when you wet-block it. Blocking is the process of wetting your finished piece, gently stretching it into shape, and allowing it to dry. For lace, blocking doesn’t just improve the fabric; it transforms it. Stitches that looked chaotic open up into crisp, geometric patterns. Edges that were curling and unruly lie flat and smooth. The entire character of the piece changes.

So please, don’t judge your flower before you’ve blocked it. And if your first attempt doesn’t look the way you expected even after blocking, give it another try. Lace rewards patience.

The other thing to know is that yarn-overs and their paired decreases always come in sets. Every yarn-over (abbreviated YO) adds a stitch, and every decrease — whether it’s a k2tog (knit two together) or an ssk (slip, slip, knit) — removes a stitch. They balance each other out. If you lose track of where you are in a round, counting your stitches and checking whether you have the right total for that round will tell you whether something has gone wrong.

The Buttercup Pattern

This pattern creates a single five-petaled flower worked in the round from the center out. It produces a flat medallion approximately 2 to 2.5 inches in diameter when worked in fingering weight yarn and blocked. The exact finished size will vary depending on your yarn weight, needle size, and how aggressively you block.

Abbreviations used:
CO — cast on
K — knit
K2tog — knit two together (right-leaning decrease)
KFB — knit into the front and back of the stitch (increase)
M1R — make one right (lifted increase)
P — purl
PM — place marker
SM — slip marker
SSK — slip, slip, knit (left-leaning decrease)
YO — yarn over
Rnd — round

Cast On and Setup

Using your preferred method for small circumferences in the round, cast on 5 stitches and join to work in the round, being careful not to twist. A magic loop or two double-pointed needles work well for this small a cast-on. Alternatively, you can use the Emily Ocker circular cast-on for a tighter, nearly invisible center, which I personally love for flower motifs.

Place a stitch marker at the beginning of the round.

Round 1: (K1, YO) five times — 10 stitches

Round 2: Knit all stitches.

Round 3: (K1, YO, K1, YO) five times — 20 stitches

Round 4: Knit all stitches.

Round 5: (K1, YO, K2, YO, K1) five times — 30 stitches

Round 6: Knit all stitches.

Round 7: (K1, YO, K4, YO, K1) five times — 40 stitches

Round 8: Knit all stitches.

Round 9 (Petal Tip Round): (K1, YO, K1, SSK, K2, K2tog, K1, YO, K1) five times — 40 stitches. The stitch count remains the same on this round because each yarn-over is balanced by a decrease within the same petal section. This round begins to create the slight pointed or rounded tip at the top of each petal, depending on how you work your tension.

Round 10: Purl all stitches. This creates a simple turning ridge that helps the tips of the petals curl forward very slightly, adding dimension to the finished flower.

Round 11 (Bind Off Round): Bind off loosely using a stretchy bind-off method. I strongly recommend the suspended bind-off or the Russian bind-off for this purpose, as a tight bind-off will prevent the petals from opening properly during blocking.

Finishing

Cut your yarn, leaving a tail of about 6 inches. Thread your tail onto a tapestry needle and weave it through the remaining live stitches at the beginning, then use the tail to close any gap at the center of the flower if needed. Weave in all ends securely.

Blocking Your Buttercup

As I mentioned above, blocking is where the real transformation happens. For a single flower motif like this one, the process is simple and satisfying.

Soak your finished flower in cool to lukewarm water with a drop of fiber wash or gentle soap for about ten to fifteen minutes, or until the fiber is thoroughly saturated. Gently squeeze out the water — never wring or twist — and press the flower between two clean towels to remove excess moisture.

Place the flower on your blocking surface and use your fingers to gently open each petal, spreading the yarn-overs into proper lace holes and coaxing each petal into a rounded teardrop shape. If you have blocking pins, pin the tip of each petal and one or two points along the outer edge to hold the shape while drying. If you don’t have pins, you can simply shape the flower with your fingers and leave it to dry; it will hold its shape reasonably well, though pins will give you a crisper result.

Allow to dry completely before removing pins. This usually takes anywhere from a few hours to overnight, depending on your humidity and the fiber content of your yarn.

Ways to Use the Buttercup Motif

The individual flower is lovely on its own, but where this pattern really starts to sing is when you begin to think about what you can make with it. Here are some ideas that have come up repeatedly in my own knitting practice and in conversations with other fiber lovers.

A garland or string of flowers is one of the simplest and most charming uses of this motif. Work as many flowers as you like, block them all, and then connect them with a simple crochet chain or a length of coordinating yarn run through the petal tips. Hung across a window or along a mantelpiece, a garland of knitted buttercups is one of those handmade decorations that people stop and ask about every time.

Appliquéd flowers on garments are another wonderful application. A handful of buttercups stitched to the hem of a child’s sweater or along the collar of a simple knit cardigan transforms something plain into something personal. Because the motif is small and flat, it lies beautifully against fabric without adding significant bulk.

A floral scarf or shawlette made by working multiple flowers and connecting them as you go — what knitters call a join-as-you-go technique — creates a delicate, freeform textile that feels like something you might have found pressed between the pages of an old book. You can plan the arrangement in advance or let it grow organically.

Hair accessories and jewelry are a natural fit for small knitted flowers. A buttercup blocked with starch or fabric stiffener can be attached to a bobby pin or hair clip, or even framed behind a simple bezel finding to create a fiber art pendant. These make extraordinarily thoughtful handmade gifts, especially when the recipient knows you made them from scratch.

A blanket or cushion cover worked entirely in connected motifs is a larger undertaking but an enormously satisfying one. This kind of project is best approached slowly and without a fixed deadline — it’s the kind of thing you pick up on quiet evenings and put down when life gets loud.

Tips for Getting the Best Results

A few things I’ve learned from working this pattern multiple times and seeing others work it.

Work your yarn-overs loosely. The most common mistake in this kind of lace is pulling the yarn-over snug when you work it, which closes up the hole and defeats the purpose. Let the yarn-over be lazy and open, even if it looks wrong on the needle. It will look right after blocking.

Check your stitch count at the end of each round. Because the petal sections are all identical, an error in one of them will usually manifest as an asymmetry that’s easy to spot if you’re paying attention to the count. The total stitches after each round are 5, 10, 20, 30, 40, and then 40 again.

Use a lifeline if you’re working multiple flowers and want to be able to rip back easily. A lifeline is simply a length of smooth, contrasting yarn threaded through your live stitches at the end of a completed round using a tapestry needle. If something goes wrong in the next few rounds, you can pull out your needle, rip back to the lifeline, and re-thread your needle through the saved stitches without losing your work.

Experiment with beads. Lace and beads are natural companions, and this flower pattern has several places where a small bead — placed on the yarn before a yarn-over — can add a beautiful accent. A single bead at the center of the flower, or beads placed at each petal tip, are both lovely options.

The Meditative Quality of Small Things

I want to close with something that’s less about technique and more about why this particular kind of project matters to me, and maybe to you.

There’s a certain kind of making that asks you to slow down. Not all knitting does this — a quick stockinette project in bulky yarn can feel like production, like progress measured in inches. But lace knitting, especially at small scale, asks for your attention in a different way. You have to look. You have to count. You have to trust that the chaos of stitches on your needle is actually going somewhere, even when you can’t quite see it yet.

Working a handful of buttercups over a quiet weekend is the knitting equivalent of taking a slow walk through a field. You’re not going anywhere in particular. You’re just looking, closely, at small beautiful things, and making more of them with your hands. By the time you’ve finished your first garland or your first scatter of flowers for a child’s sweater, you’ve spent hours thinking about petals — about the way they grow, the way they curve, the way they catch light. That kind of attention is its own reward, quite apart from the finished object.

The Buttercup pattern is free because I want as many people as possible to have the experience of making it. Share it with a knitting friend who’s been curious about lace. Work through it with a beginner at your local yarn store. Make a hundred flowers and give them away. The more this small, cheerful, five-petaled shape is out in the world, the better it seems to me.

I hope you love this pattern as much as I do. If you make your own Buttercup flowers, I’d genuinely love to see them — tag your photos with #StringGeekery or drop a link in the comments below. Happy knitting.