This pattern and a video tutorial is available for FREE on my blog MARTINUPNORTH.COM and there is a ready to print PDF pay version here on Ravelry in US, UK and german terms.

Materials
Hook: 4.00mm
Yarn A: 4 balls of Scheepjes Cahlista, 130/old lace 50grams/85meter, 100% cotton natural.
Yarn B: 4 balls of Scheepjes Cahlista, 509/baby blue 50grams/85meter, 100% cotton natural.
Yarn C: 4 balls of Scheepjes Cahlista, 074/mercury 50grams/85meter, 100% cotton natural.
Yarn D: 4 balls of Scheepjes Cahlista, 247/bluebird 50grams/85meter, 100% cotton natural.
Yarn E: 4 balls of Scheepjes Cahlista, 400/petrol blue 50grams/85meter, 100% cotton natural.
Yarn F: 4 balls of Scheepjes Cahlista, 527/midnight 50grams/85meter, 100% cotton natural.
Yarn G: 4 balls of Scheepjes Cahlista, 521/deep violet 50grams/85meter, 100% cotton natural.
Yarn H: 2 balls of Scheepjes Cahlista, 124/ultramarine 50grams/85meter, 100% cotton natural.
Yarn I: 1 ball of Scheepjes Cahlista, 249/saffron 50grams/85meter, 100% cotton natural.
Yarn J: 1 ball of Scheepjes Cahlista, 383/ginger gold 50grams/85meter, 100% cotton natural.
Yarn K: 1 ball of Scheepjes Cahlista, 507/chocolate 50grams/85meter, 100% cotton natural.
Yarn L: 1 ball of Scheepjes Cahlista, 162/black coffee 50grams/85meter, 100% cotton natural.
Measurements
Width: 90cm/35.4inch (with border)
Length: 125cm/49.2inch (with border)

Abbreviations (US terms)
ch(s) chain or chain stitches
ch-sp chain space
ss slip stitch
sc single crochet
dc double crochet
hdc half double crochet
blo back loop only: insert hook in back loop only
rep repeat
ws wrong side
rs right side
st(s) stitch(es)

Pattern Notes

● Read the whole pattern before you start.
● Ch1 or ch2 at beg of row does not count as st. First dc or hdc is always worked in same stitch as ch1 or ch2.
● The pattern is based on a multiple of 4 stitches (plus1 in starting ch) in width.
● With a ch145 you should be able to crochet every color section with one ball. Except the first and the last section which has more rows in one color.
● The ch4 in row 5 is anchored around the first ch of the previous ch4-sp after you turned work while working the row. (see pic.1), except for the first ch4 which is anchored in the 3rd hdc of the row.