Knitting Pattern: Purl Ridges

Purl Ridges (worked over an odd number of sts)

Note: the instructions below are a generic description of how to execute this stitch pattern. For a single repeat, you'd only need three stitches but you'd have a VERY narrow piece! In the example shown, there are fifteen repeats of the stitch, so to make a swatch that looks like the one shown, you need to cast on 45 stitches (15 x the multiple of 3 stitches needed for a single repeat of the pattern.)

Row 1 (RS) Knit. 
Rows 2 and 4 Purl. 
Row 3 K1, *p1, k1; rep from * to end. 
Rep rows 1-4.

Stitch directions reproduced with permission, from Vogue Knitting Stitchionary: Volume One, Sixth & Spring Books, 2005