You will need 6 buttons. Rowan used # BN 1979 from Bedecked for Colourway #1 (Blues), and #BN15010/12 for Colourway #2 (Reds)

The cardigan is shown in two different colourways in the magazine.

Red Colourway:
Rowan Felted Tweed
A. Rage 150 - 4(4, 4, 5, 5) balls
B. Seafarer - 2(3, 3,3, 3) balls
C. Maritime 167 - 1 ball for all sizes
D. Barbara 200 - 1 ball for all sizes
E. Amethyst 192 - 1 ball for all size
F. Peony 183 - 1 ball for all size
G. Celedon 184 - 1 ball for all sizes
H. Watery 152 - 1 ball for all sizes
I. Duck Egg 173 - 1 ball for all sizes
J. Pink Bliss 199 - 1 ball for all sizes

Blue Colourway:
Rowan Felted Tweed
A. Delft 194 - 4(4, 4, 5, 5) balls
B. Seafarer - 2(3, 3,3, 3) balls
C. Maritime 167 - 1 ball for all sizes
D. Scree 165 - 1 ball for all sizes
E. Amethyst 192 - 1 ball for all size
F. Peony 183 - 1 ball for all size
G. Celedon 184 - 1 ball for all sizes
H. Watery 152 - 1 ball for all sizes
I. Duck Egg 173 - 1 ball for all sizes
J. Frozen 185 - 1 ball for all sizes