What a bobble stitch is and why you'd use it
A bobble stitch is a small, raised bump of knitted fabric that sits on the surface of your work. You create it by working multiple stitches into the same stitch, then decreasing them back down to one. The result looks like a little ball popping out from your knitting—useful for texture, decoration, or adding visual interest to a plain stockinette background.
Bobbles appear in many patterns: children's sweaters, blankets, hats, and decorative panels. They're not difficult once you understand the basic sequence, though they do take a few extra rows to complete. Most bobbles take between 4 and 8 rows to finish, depending on how large you want them.
Key Takeaways
- A bobble is made by increasing into one stitch (usually 5 times), working several rows on those stitches, then decreasing them back to one.
- The most common bobble uses 5 stitches increased into 1, worked over 4 rows, then decreased back down.
- You can make bobbles larger by increasing more times or working more rows, or smaller by doing fewer of each.
- Bobbles sit on top of stockinette or garter stitch and are usually placed several stitches apart so they don't crowd each other.
The basic five-stitch bobble in four rows
This is the most common bobble you'll see in patterns. You'll work it over 4 rows, and it uses one stitch from your main fabric as the base.
On the row where you want the bobble to appear, knit to the stitch where the bobble goes. Instead of knitting that stitch once, you'll knit into it five times without dropping it from your left needle. After the fifth knit, drop the stitch. You now have 5 stitches on your right needle where there was 1 before.
Turn your work around (as if you're starting a new row, even though you're in the middle of a row). Purl these 5 stitches. Turn again and knit these 5 stitches. Turn again and purl these 5 stitches. Now you have completed 4 rows on just these 5 stitches.
On the next row (the decrease row), you'll work these 5 stitches back down to 1. The simplest way is to pass the first stitch over the second, the second over the third, the third over the fourth, and the fourth over the fifth. You're left with 1 stitch. Continue knitting across the rest of your row. The bobble is complete.
How to increase into one stitch five times
The increase that creates the bobble base matters because it affects how the bobble looks. The most straightforward method is to knit into the front of the stitch, then knit into the back of the same stitch, then knit into the front again, then the back again, then the front once more. Each time you knit, you leave the original stitch on your left needle until you've completed all five knits.
Some knitters prefer to knit, purl, knit, purl, knit into the same stitch instead. This creates a slightly different texture. Either method works—use whichever feels more natural to you.
The key is not to drop the stitch from your left needle until all five new stitches are on your right needle. If you drop it early, you'll lose stitches and create a hole.
Decreasing the bobble back to one stitch
After you've worked 4 rows on your 5 bobble stitches, you need to decrease them back to 1. The pass-over method (slip one, knit one, pass slipped stitch over) works well and creates a neat finish. Slip the first stitch knitwise, knit the second stitch, then pass the slipped stitch over the knit stitch. Repeat until you have 1 stitch left.
Alternatively, you can knit 2 together four times, which also brings you down to 1 stitch. This method is slightly faster but can create a slightly looser bobble. Test both on a swatch if you're unsure which you prefer.
Once you've decreased to 1 stitch, continue knitting across the rest of your row as normal. The bobble is now complete and will sit as a raised bump on your fabric.
Making bobbles larger or smaller
The standard 5-stitch, 4-row bobble is a good starting point, but you can adjust the size. A larger bobble uses more stitches or more rows. For example, a 7-stitch bobble worked over 6 rows creates a much puffier effect. A smaller bobble might use only 3 stitches over 2 rows, creating a subtle texture.
The rule is straightforward: more stitches and more rows equal a bigger bobble. Fewer stitches and fewer rows equal a smaller one. If you're following a pattern, it will specify which size to use. If you're experimenting, start with the standard 5-stitch version and adjust from there based on what you see.
Spacing bobbles so they look intentional
Bobbles work best when they're spaced deliberately across your fabric. Placing them randomly can look messy; placing them in a grid or scattered pattern looks planned. A common approach is to place a bobble every 4 to 6 stitches horizontally and every 6 to 8 rows vertically, but this varies by pattern.
If you're designing your own bobble placement, sketch it on graph paper first. This helps you see whether the spacing feels balanced before you start knitting. You can also look at existing patterns to see how other designers space bobbles—this gives you a sense of what looks good.
Mark your bobble positions on your pattern or use stitch markers to remind yourself where they go. It's straightforward to forget mid-row, especially if you're working on a large project.
Common mistakes and how to avoid them
The most frequent error is dropping the base stitch too early when you're increasing into it. Keep the original stitch on your left needle until all five new stitches are find on your right needle. If you drop it early, you'll create a hole and lose stitches.
Another common issue is working the bobble rows too tightly. Because you're working back and forth on just a few stitches, the tension can become cramped. Try to keep your tension consistent with the rest of your work. If the bobble feels stiff, you may have pulled too hard on the yarn.
Some knitters also forget to turn their work between bobble rows. Remember: after you increase into the base stitch, you turn and purl, turn and knit, turn and purl. If you don't turn, you'll be working in the wrong direction and the bobble won't form correctly.
Frequently Asked Questions
Can I make a bobble on a purl row instead of a knit row?
Yes. Instead of knitting into the stitch five times, you purl into it five times. Then you work the bobble rows the same way—knit, purl, knit, purl—and decrease as normal. The bobble will sit on the same side of the fabric either way.
What if my bobble looks loose or floppy?
Tighten your tension slightly when you're working the bobble rows, especially the first row after the increase. A loose bobble can also mean you've worked too many rows—try reducing from 4 rows to 3 and see if that helps. You can also try using a smaller needle for the bobble rows only.
Do I have to use the pass-over decrease, or can I use a different decrease?
You can use any decrease that brings multiple stitches down to one. Knit 2 together works fine. Slip, slip, knit (SSK) also works. The pass-over method is traditional because it creates a neat center, but the choice is yours. Test on a swatch to see which you prefer.
How do I fix a bobble if I made a mistake in the middle of it?
If you notice the error while the bobble is still on your needles, you can tink back (unknit) to the mistake, fix it, and continue. If you've already finished the bobble and moved on, you can use a crochet hook to pick up the stitches and fix it, or you can leave it as is—many bobble mistakes are less noticeable than you think once the garment is finished.