seed stitch

Seed stitch is a fundamental knitted fabric produced by alternating knit and purl stitches in a checkerboard pattern on every row and column. The result is a bumpy, textured surface that looks roughly the same on both sides, with small raised nodules resembling seeds scattered across the face. Each knit stitch sits surrounded by four purl stitches in the perpendicular directions, and vice versa, creating uniform texture throughout.

The construction demands precision in stitch placement and consistent tension to maintain the regular alternation. When executed on flat needles by hand, the knitter must remember to reverse the stitch pattern on each return row: if row one begins with knit, row two must begin with purl. Machine knitting of seed stitch requires careful cam setup or electronic patterning to maintain this alternation. The fabric does not lie flat like stockinette; instead it naturally curls slightly inward at the edges, which makes it well-suited to garment edges and cuffs where this property is useful.

Seed stitch is inherently firm and non-elastic compared to stockinette at the same yarn weight and gauge. The frequent directional changes of the yarn cause the fabric to sit dense and stable. This makes it popular for outerwear, structured garments, and dishcloths where durability and dimensional stability matter more than drape. The texture also disguises uneven tension in hand knitting, which is why it remains a pedagogical staple for teaching knitting fundamentals.

Common variations and problems

Double seed stitch (also called garter seed stitch) repeats the knit-purl pattern across two rows instead of one, producing slightly larger bumps and a marginally more elastic fabric. Half seed stitch exists as well, using fewer alternations per row. The primary fault in seed stitch execution is mistaking the pattern and knitting two consecutive rows in the same orientation, which breaks the checkerboard and produces visible horizontal bands. Edge stitches are often worked differently in patterns to create cleaner selvage, complicating the strict alternation rule.

The term "seed stitch" derives from the visual resemblance of the small purl bumps to seeds scattered on a surface. In North American knitting tradition, this is the standard meaning. British knitting historically called the same stitch "moss stitch," though contemporary British usage often aligns with the North American convention. The stitch has been documented in hand knitting manuals since at least the nineteenth century.