This pattern is the continuation of my Flower Wheel Coaster which will eventually grow into The Flower Wheel Mandala Series. The square can be made in any yarn - the squares on the photos are made with:

Drops Nepal (Aran) and a 5 mm hook - 8 x 8 inches
Drops Belle (DK) and a 4 mm hook - 6.4 x 6.4 inches
Scheepjes Catona and a 3 mm hook - 5 x 5 inches

The instructions are written out on my blog in both UK and US terms and link to a full guide on how to make standing crochet stitches. The square will continue to grow over the next couple of months.