Embroidering on knitting means stitching a design into the surface of a finished garment or project using a needle and thread

You can add embroidery to any knitted piece after you've finished knitting it. The process uses a regular embroidery needle and thread (or yarn) to stitch designs, outlines, or details on top of the knit fabric. Unlike embroidery on woven cloth, you're working with loops instead of a flat weave, which changes how your needle moves and where it catches.

The main advantage is that you can plan your design after the knitting is done—no need to chart it out beforehand or worry about gauge. You can cover mistakes, add personalization, or turn a plain sweater into something unique. The main challenge is that your embroidery thread can slip between the knit loops if you don't anchor it properly, and the fabric's stretch means your stitches need to move with it.

Key Takeaways

  • Use a blunt embroidery needle or tapestry needle so you split the knit loops rather than the yarn itself, which weakens your stitches.
  • Anchor your thread by weaving it through several stitches on the back before you start, never with a knot, because knots can pull through the loose knit fabric.
  • Work backstitch or split stitch for outlines and straight stitch for filling, keeping tension loose enough that your embroidery moves with the knit fabric.
  • Test your thread choice on a swatch first—some threads slip on knit, and yarn weight matters because thick yarn can distort the fabric underneath.

Choosing the right needle and thread

A blunt embroidery needle or tapestry needle is essential. The rounded tip pushes the knit loops apart instead of piercing the yarn strands, which keeps your stitches from weakening the fabric. A sharp needle will split the yarn itself, and those stitches will eventually unravel or look loose. Size 18 to 22 tapestry needles work for most knit projects.

For thread, you have three main options: embroidery floss (six-strand cotton), yarn that matches your knit weight, or specialty embroidery thread. Embroidery floss is the most common choice because it comes in hundreds of colors and you can separate the strands to control thickness. Use two to four strands at a time—thinner for detail work, thicker for bold designs. Yarn works well if you want the embroidery to blend seamlessly with the knit, but it's harder to control and can pucker the fabric if you pull too tight. Test any thread on a knit swatch first; some materials slip on the loops and won't hold their shape.

Preparing your knitted piece and marking the design

Wash and dry your finished knit project before you embroider, if the yarn can handle it. This prevents the fabric from shifting or puckering later when you wash the finished piece. Let it dry completely and lay it flat on a clean surface.

Mark your design lightly with a water-soluble fabric pen or a sharp pencil. Draw directly on the knit if the design is straightforward, or transfer a pattern by taping it behind the fabric and tracing through. For geometric designs, you can count stitches and rows instead of drawing—this is especially useful for repeating patterns. Avoid permanent markers; they won't wash out and can bleed into your thread.

Anchoring your thread without knots

Never start with a knot. Knots can slip through the loose loops of knit fabric and pull your entire design out. Instead, weave your thread through the back of several stitches before you begin stitching. Thread your needle, bring it up through the back of the fabric about half an inch from where you want to start, and run it under three or four loops on the wrong side. Then bring the needle back out at your starting point. This anchors the thread without a knot.

When you finish a section, weave the thread through the back loops again for at least half an inch, then trim close to the fabric. This method holds even on stretchy knit and won't create bumps on the front.

Basic embroidery stitches for knit fabric

Backstitch is the strongest stitch for outlines and lettering on knit. Bring the needle up through the fabric, go back down one stitch length behind, and come up one stitch length ahead. Keep your stitches small and even. Because you're working on loops, your needle will naturally split some of them—that's fine and normal.

Split stitch creates a slightly thicker line and works well for bold outlines. Bring the needle up, go down ahead of where you came up, then come back up through the middle of the thread you just laid down. This splits the thread and locks it in place. On knit, split stitch is more forgiving than backstitch because the loops help hold the thread.

Straight stitch fills areas with individual stitches. Bring the needle up, decide your stitch length and direction, go down, and come back up for the next stitch. Vary the direction slightly so the stitches follow the contour of your design rather than all running the same way. This makes the fill look more natural and less rigid.

French knots add texture and work on knit, but they're trickier because the loops can catch them. Wrap the thread around your needle once or twice, insert the needle close to (but not through) where you came up, and pull the thread taut as you push the needle through. Practice on a swatch first.

Tension and stitch size on stretchy fabric

Keep your tension loose—looser than you would on woven fabric. If you pull too tight, your embroidery will pucker the knit underneath and the stitches will look bunched. The fabric needs to stretch and move naturally. A good test: after you finish a section, gently stretch the knit in all directions. Your embroidery should move with it without pulling or distorting.

Make your stitches small enough to control but not so tiny that they disappear into the knit texture. On most knit, stitches about the size of one knit stitch work well. If your stitches are much larger, they'll sink into the loops and look uneven. If they're much smaller, they'll be hard to see and take forever to complete.

Common mistakes and how to avoid them

The most common mistake is pulling too tight. This puckers the fabric and makes your embroidery look strained. Remember that knit is forgiving—you don't need to pull hard to make stitches stay. A second mistake is using a sharp needle, which splits the yarn strands and weakens your work. Always use a blunt needle.

Starting with a knot is another frequent problem. Knots slip through knit loops and your entire design can unravel. Weave your thread through the back instead. Finally, some people embroider before washing the knit, then the fabric shifts when it's washed and the design moves with it. Wash first, embroider second.

If you make a mistake, carefully pull the thread out and re-stitch. Knit is forgiving about small holes left behind—they close up once you pull the thread out, especially if you used a blunt needle.

Frequently Asked Questions

Can I embroider on a sweater while I'm wearing it?

No. The fabric will shift and stretch as you move, and your stitches won't sit evenly. Lay the sweater flat on a table and work on one section at a time. If you're embroidering a large design, pin the fabric to a blocking board to keep it stable.

What thread won't slip off knit loops?

Embroidery floss with four to six strands holds best because the multiple strands grip the loops. Thin single-strand thread or slippery materials like silk slip easily. Test any new thread on a knit swatch before committing to your project.

Can I embroider on a knit-in-progress, or do I have to wait until it's finished?

Wait until the piece is finished. Embroidering on live stitches or partially finished knit is difficult because the fabric is unstable and your stitches can catch on working yarn. Finish, bind off, and weave in ends first.

Will embroidery on knit wash out or fade?

If you use quality embroidery floss and find your stitches properly, embroidery holds through many washes. Use the same water temperature and detergent you use for the knit itself. Wash in a mesh bag on a gentle cycle to protect the embroidery from snagging.

How do I fix embroidery that's puckering the knit underneath?

Gently stretch the fabric in all directions while the piece is still damp. If puckering is severe, you may need to pull out the embroidery and redo it with looser tension. Blocking the finished piece flat can also help smooth out minor puckering.