I’m modifying the counts to make it fit size 6-9 months. I also use a smaller hook.

Foundation HDC of 50 x 20 rows.

Front panels = 15 stitches x 20 rows.

Back panel = 22 rows + 6 rows of decreasing

Border = 5 rows

Sleeves = 5 rows each

FINISHED! I love how the color turned out on this cardigan. I tried it on my son, and it is perfect for size 6-9 months.