A friend on Craft Share's face book page asked for the flower square pattern in one colour. I tried it with a 4mm crochet hook and soft cotton string that I bought at a stationary shop some time ago. Think it's time for tea ...
Use one colour in double knit 100% cotton and a 3,5mm crochet hook.
Loosely chain 3 (counts as first treble of round 1).
Round 1 (inside of flower): Work 15 trebles into 3rd chain from the hook.
Join with a slip stitch to the 3rd chain.
Round 2 (petals of flower): Slipstitch into space between 1st and 2nd trebles of round 1.
Chain 3 (counts as first treble of round 2).
Work 3 trebles into the same space as the slipstitch.
*Skip the next 2 trebles from round 1 and work a group of 4 trebles into the next space between trebles*.
Repeat from * to * until you have 8 groups of 4 trebles each.
Join with a slip stitch to the 3rd chain made that started round 2.
Round 3 (square): Slipstitch into the space right below, between last and first 4 treble-group of round 2.
Chain 3 (counts as a treble).
Work 2 half trebles and 1 treble into the same space as slipstitch.
*(3 trebles, 2 double trebles, 3 trebles) into the next space between petals to form the corner.
(1 treble, 2 half trebles, 1 treble) into the next space between petals.*
Repeat from * to * 2 more times.
In the last space between 2 petals work (3 trebles, 2 double trebles, 3 trebles).
Join with a slip stitch to the 3rd chain made that started round 3.
Round 4: Chain 1. Double crochet in the back loop of the next 7 stitches of round 3.
Work 2 double crochet into next stitch of round 3.
*1 Double crochet into the back loop of each of the next 11 stitches.
Double crochet in the next stitch.*
Repeat from * to * 3 more times. Double crochet in the back loop of the next 4 stitches.
Join with a slipstitch to the chain that started round 4.
Fasten off and weave in all loose ends.