Collared sweater worked in one piece, beginning at lower front edge.

If knitting in 4 ply tension is 28 sts and 36 rows over stocking stitch 10cm on 3.25mm (US 3) needles.

2 balls for Newborn to 3 months
3 balls for 6 months to 18 months
4 balls for 2 years to 4 years although I needed 5 when I made it.

You will need stitch holders and stitch markers.

You will need a button for the neck.