From the Knit Rowan website:

Knit his ladies short-sleeved polka dot effect cardigan from Rowan Studio Issue 31. A design by Lisa Richardson, using our wonderful soft blend Wool Cotton 4ply (wool and cotton), this knitting pattern is suitable for the average knitter.

Yarn Information:
A - String 481
3, 3, 4, 4, 5 skeins
591, 591, 788, 788, 985 yards

B - Aqua 487
2, 2, 2, 3, 3, skeins
394, 394, 394, 591, 591 yards

C - White 483
1, 2, 2, 2, 2, skeins
197, 394, 394, 394, 394 yards

D - Celanden 482
1, 1, 1, 2, 2 skeins
197, 197, 197, 394, 394 yards

Extras:
QTY (3) BN1357 (15mm) buttons from Bedecked.
QTY (6) BN1709 (20mm) buttons from Bedecked.