From the Knit Rowan website:
Knit this gorgeous baby cardigan, a design from the Rowan archive originally featured in Classic Babies. Designed by Martin Storey using Baby Merino Silk DK, a luxury machine washable yarn designed specifically for babies (merino superwash wool and tussah silk), this cosy cardigan is finished with a pretty corsage.

Materials:
Yarn: Sample garment in book is shown in color 807 Pixie (pale pink).

Additional Supplies</strong> 
1 button - 75320

Size:
Size 0-3 months:  284 yds

Size 3-6 months:  426 yds.

Size 6-12 months:  426 yds.

Size 12-18 months:  568 yds.

Additional Information:  Baby jacket with single button closure at the top, crocheted edging and knitted flower trim (sewed on when jacket is complete).  Raglan sleeves.
Crocheted edging uses slip stitch, chain, double crochet, treble crochet (UK terminology)/slip stitch, chain, single crochet, half double crochet, double crochet and treble crochet (US terminology).  Please note that pattern uses UK terminology so if you are accustomed to US crochet terms, please adapt accordingly.