use white yarn, start with the foundation chain of 13 ch
R1: from 2nd st of hook: 11 sc, 3 sc in next st, 10 sc, 2 sc in next st. 1 ss, 1 ch
R2: 2 sc in next st, 2 sc, then change green yarn, 7 sc, ( 2 sc in next st ) * 3 times, 6 sc, then change white yarn, 3 sc, ( 2 sc in next st ) * 2 times. 1 ss, 1 ch
R3: 1 sc, 2 sc in next st, 2 sc, then change green yarn, 2 sc, 2 hdc, 3 dc, ( 2 dc in next st ) * 7 times, 3 dc, 2 hdc, 2 sc, then change white yarn, 3 sc, ( 1 sc, 2 sc in next st ) * 2 times. 1 ss, 1 ch
R4: 4 ss, change green yarn, 4 ss, ( 1 sc, 3 ch ) * 22 times, 1 sc, 3 ss, then change white yarn, 7 ss