Does seed stitch use more yarn?
Yarn Consumption: Though the constant alternating between knit and purl stitches produces a slightly tighter fabric than stockinette, seed stitch does not use significantly more yarn. … It is not suited for variegated yarns or other colorwork, as the subtle patterning is lost in the color changes.
Does moss stitch need odd number of stitches?
How to knit moss stitch. You can knit basic moss stitch on an odd or even number of stitches. Cast on an odd number of stitches, work K1, P1 to the end of the row, finishing with a knit stitch.